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MORE:
K. Bos: in Videos, Museum, Books, & Articles
K. BOS in TOURISM HISTORY EDUCATION
In November 2025, my new friend Ratnawati shared this photo with me.
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She is a museum educator and took the photo of the screen while present at a high school class presentation on the topic of Malang tourism history, given by Dwi Cahyono, businessman and owner of the Tempo Doeloe Museum. (Rumah Makan Inggil.) My grandfather, Karel H. G. Bos, was mentioned during this lecture because of the photo. He explained the latest data obtained from a family member of Karel Bos while she was visiting Malang. This was regarding the widely circulated opinion that Karel Bos built the twin buildings because he had twin boys.
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(Note: Mr. Dwi Cahyono has two museums in Malang: the Tempoe Doeloe Museum and the Panji Museum.)
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Ratna asked me if I knew who was in the photo pictured with Mr. Dwi. I DID! It was my "second mom", my aunt Joan Bos.
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Not only that, but I knew the backstory of the photo, as I clearly remember my aunt telling me. My aunt Joan told me that on a visit to her hometown of Malang with friends, she decided to check out the Tempo Doeloe Museum. She wanted to go to this museum especially because a portion of the museum was dedicated to the time period of her childhood in Malang. Her friends/travel companions did something else, so she visited the museum on her own.
She told me of how she was stopped in her tracks while enjoying the displays and exhibits. She saw a photo of her dad!! And of his architectural works! My aunt was so instantly overcome with emotion that she started crying in the museum. She said that the museum owner came out to see if she was okay, to which she exclaimed, "THAT'S MY DAD!" And from there they made a connection and shared information. This photo was taken as a result of that interaction.
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A huge thank you to Ratnawati for sharing this photo with me! And a huge thank you to Mr. Dwi Cahyono for sharing the photo with the class, and to both for allowing me to share the photo on this website.
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STAY TUNED: Ratnawati is writing a book!
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These all specifically mention Karel H. Bos and/or show his works.
K. BOS in MUSEUMS
1.) Museum Tempo Doeloe, Malang: Displays photos of buildings by KAREL BOS. (May or may not still display his photo as well.)
Museum may have moved. Owner opened new Museum-themed restaurant:
INGGIL MUSEUM RESTO / RUMAH MAKAN INGGIL
Jl. Zainul Arifin No.53 A-B, Sukoharjo, Kec. Klojen, Kota Malang, Jawa Timur 65119, Indonesia
2.) Kayutangan Heritage Village, Malang: Open‑Air Museum (Includes the TWIN BUILDINGS by Karel Bos.)
kajoetanganheritagevillage.com
K. BOS in VIDEOS
(There are so many more! These are just a sampling.)
1.) YouTube: "Kayutangan - Malang Full Tempo Dulu" 2024 by otografi vlog
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Mentions Karel Bos & has photos of his works at: 11:47 through 13:47 (specifically mentions "Karel Bos" at 12:24 and 13:14), 20:11
2.) YouTube: "Kota Malang Tempo Doeloe #malang #sejarah #jatim" ("Malang City in the Past") 2024 by History Channel
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Mentions Karel Bos &/or has photos of his works. at 0:00 (cover!)
3.) YouTube: "Potret Keindahan Kota Malang Tempo Dulu Tahun 1920-1953" ("Portrait of the Beauty of Malang City in the Past, 1920-1953") 2020 by Bimo K.A.
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Mentions Karel Bos &/or has photos of his works. at: 5:12
4.) YouTube: "Simpang Rajabali Kota Malang" ("Rajabali Intersection, Malang City") by Roads Channel Malang
has a series of video shorts that all feature the current day Twin Buildings.
5.) YouTube: "Gedung Kembar Rajabally" ("RADJABALLY TWIN TOWERS") 2025 by Honjret Malang.
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Shows the works of Karel Bos AND mentions AND shows the name "Karel Bos" at :18
6.) YouTube: "Bengunan Kembar Kayoe Tangan" (TWIN BUILDINGS OF KAYOE TANGAN) 2021 by numpak motor udhug
(also on the page: "THE ARCHITECT: Architecture: Commercial")
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Says the name of KAREL BOS at about 2:09
7.) YouTube: "Brankas Kuno di Bunker Gedung Kembar Kayutangan Malang" (The Ancient Safe in the Kayutangan Twin Tower Bunker Malang") 2022 by Darmadi Sasongko
About the Twin Buildings, specifically the right-hand building. It shows the INTERIOR, EXTERIOR, & ROOFTOP, just before the 2021 renovations for the opening of Lafayette Coffee & Eatery.
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(also on the page: "THE ARCHITECT: Architecture: Commercial")
Shows the name of KAREL BOS on the screen at 1:05
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K. BOS in BOOKS
1.) "Malang: Beeld van Een Stad" ("Malang: Image of a City")
by A. van Schaik
(This is the book my aunt Joan Bos gifted to me in 2015.)
Published in 1996 by Asia Maior in Purmerend, Netherlands, this Dutch-language hardcover spans 160 pages and features numerous black-and-white photographs. The book provides an in-depth exploration of Malang’s local history, architecture, and urban development, highlighting the contributions of prominent architects such as Karel Bos. This publication is part of the Indische stedenreeks (Indonesian Cities Series) by Asia Maior, which also includes volumes on Batavia, Soerabaya, Semarang, and Bandoeng. The series is renowned for its rich visual documentation and scholarly insights into Dutch colonial urban history in Indonesia.
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Mentions Karel Bos & has photos of his works.
PAGES: 34, 102, 103, 127, 131, 132
2.) "Arsitektur Di Nusantara" ("Architecture in the Archipelago")
by Obbe Norbruis
​Mentions Karel Bos & has photos of his works.
PAGES: 4 (Table of Contents!); 52, 53, 96, 97
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(See page: "MORE: Mistakes" re: errors on page 96 of this book.
3.) "Kota di Djawa Tempo Doeloe" ("Cities in Java in the Past") by Olivier Johannes Raap
Great book full of wonderful vintage postcards.
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​Mentions Karel Bos & has photos of his works.
PAGES: 311, 312
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4.) "Malang Tempo Doeloe: Telusuri Dengan Hati"
("Malang Tempo Doeloe: Explore With Your Heart") (2023) by Dwi Cahyono.
Detailed historical data and references. Cultural and tourism guides (addresses, phone, fax, email, GPS coordinates.)
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(I have not personally seen this one, but have been told that it mentions KAREL BOS and/or has photos of his works.)
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5.) "Malang Tempo Doeloe" by Dwidjo Koentjoro.
This book details prominent colonial-era buildings in Malang and identifies Oro-oro Dowo 1 (Welirang 41) as the personal home of Karel Bos. It often notes that K. Bos was both architect and resident of this unique house.
(I have not personally seen this one.)
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6.) "Mayflies (Ephemera)" by Willem Walraven
The Rex Theater by Karel Bos is mentioned on page 183.
​The Indische Courant – November 19, 1932
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7.) "Letters to Family and Friends (Brieven, aan familie en vrienden 1919-1941") by Willem Walraven
The "Twin Buildings/Towers" by Karel Bos is mentioned on page 505.
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8.) "Local Technology" Technical Organ of the Association for Local Interests, Bandung
The "Twin Buildings/Towers" by Karel Bos is mentioned on pages 53, 55.
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9.) "Architectuur & Stedebouw in Indonesie" (Architecture and Urban Planning in Indonesia") by Huib Akihary
Mentions Karel Bos and the "Twin Buildings/Towers" on page 56.
(Thank you to Jan de Jager of TRACES OF WAR for sharing this info with me!)
K. BOS in ARTICLES & WEBSITES
1.) “Journey Through Time in Malang: Uncovering Forgotten Tales of the Colonial Era,” BY EDU at Java Private Tour
Article includes a detailed section on the works and colonial architecture by architect Karel Bos.
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re: ARCHITECTURAL
2.) "Reminiscing Past Loves in Kayutangan"
Kayutangan is unlike any other place. It is a place where warm love blossoms. A heritage feature article confirms that in 1936, Karel Bos designed two twin buildings at the Rajabally crossroads—serving as gateway markers to West Malang.
https://www.kompas.id/baca/english/2019/12/07/reminiscing-past-loves-in-kayutangan
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3.) "Gedung Bioskop Rex, yang Kini Menjadi Bank" ("The Rex Cinema Building, Now a Bank")
Mentions Karel Bos and has photo of, and talks about the REX THEATER that he designed.
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4.) "Album Malang"
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Mentions Karel Bos and shows photo of his works.
https://id.scribd.com/document/60953801/Album-Malang
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5.) "The Disappearance of the Iconic Twin Buildings in the Kajoetangan Heritage Area"
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Mentions Karel Bos and shows photo of his works.
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6.) "Arsip Sejarah untuk Masa Depan" ANJANI.ID website (Historical Archives for the Future) Article titled "Architect Karel H. G. Bos" by Achmad Budiman
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How wonderful! This article is ABOUT my grandfather and mentions THIS website! Mentions Karel Bos and shows photo of his works.
https://www.anjani.id/arsitek-karel-h-g-bos/
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​​​​​​​​7.) "When History Connects Java and Texas Through Karel H Bos", JAVA PRIVATE TOUR WEBSITE, by Zack Arya
WOW! WOW! WOW! What an absolute honor to have JAVA PRIVATE TOUR write a story about my journey creating this site, and about my grandfather, Karel Bos!! What a blessing and a true honor!
https://javaprivatetour.com/when-history-connects-java-and-texas-through-karel-h-bos
8.) "The Story of a Cultural Heritage Building Confiscated by the National Police Criminal Investigation Agency, Karel Bos Designs a Twin Building"
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Mentions Karel Bos and shows photo of his works.
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​​​​​​​​9.) "The former Commonwealth Bank building in Kayutangan, once prosperous, is now helpless."
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Mentions Karel Bos and shows photo of his works.
https://malangpagi.com/bangunan-eks-bank-commonwealth-kayutangan-dulu-berjaya-kini-tak-berdaya/
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10.) "Twin buildings, witnesses to history, at the Rajabally intersection in Malang"
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Mentions Karel Bos and shows photo of his works.
https://malang.merdeka.com/search/gedung-kembar-saksi-sejarah-di-perempatan-rajabally-malang
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11.) "THE HISTORICAL STORY OF MALANG CITY THAT IS NOT WIDELY TOLD | SUMBERSARI VILLAGE, MALANG CITY"
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Mentions Karel Bos and shows photo of his works.
https://kelsumbersari.malangkota.go.id/kisah-sejarah-kota-malang-yang-tak-banyak-terungkap/
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12.) The Story of the Safe and the Doorless Room in the Rajabally Twin Buildings in Malang
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Mentions Karel Bos and shows photo of his works.
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13.) Literary Walk of Malang Center by Indisch Bouwkundig Tijdschrift (Indonesian Architectural Journal)
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Mentions Karel Bos and features photos of his works on at least two stops of the only guided walk by Indonesian Architectural Journal in Malang.
https://www.indischeliterairewandelingen.nl/wandelingen/malang-centrum
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Of note: The black and white photos of the walk were taken by Mr. Ong Kian Bie, owner of Studio 'Malang'., and believed friend of Karel H. G. Bos. The two had collaborated on many projects, where Mr. Ong Kian Bie took most (if not ALL) of the photos of the architectural works of K. Bos used in newspapers, books, etc.​​​​​​​​​​
14.) (In Indonesian) "THE HISTORICAL STORY OF MALANG CITY THAT IS NOT MUCH REVEALED." Mentions Karel Bos & photos of buildings:
https://kelsumbersari.malangkota.go.id/kisah-sejarah-kota-malang-yang-tak-banyak-terungkap/
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15.) Local Tourism Diversification Through Cultural Heritage (A Research on Tourism Development in Malang City) Mentions Karel Bos in: # 2) Kayutangan
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16.) "MBOIS - Malang Back to Old era In Smart devices" Mentions Karel Bos in the "Jelajah Malang Tempo Doeloe" section:
https://storymaps.arcgis.com/stories/0bce98be38ce49288a0b7f666ee83afa
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17.) In Indonesian" "Sejarah Koa Malang" ("City History Malang") Mentions Karel Bos, The Rex Theater, & Hotel (Mabes) YMCA, under "Pembangunan" (Development) section:
https://memorisejarahkotamalang.wordpress.com/pembangunan/bioskop/
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18.) In Indonesian: "MORFOLOGI PERKOTAAN PADA KAWASAN BERSEJARAH DI KORIDOR KAYUTANGAN KOTA MALANG" ("URBAN MORPHOLOGY IN THE HISTORICAL AREA IN THE KAYUTANGAN CORRIDOR OF MALANG CITY") Mentions Karel Bos:
19.) In Indonesian "Konstruksi Jendela Baja Balai Kota Malang" ("Steel Window Construction of Malang City Hall") Mentions Karel Bos:
https://www.scribd.com/document/813496475/dama-asikin93-Artikel-3-Nurachmad
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20​.) (Download) Mentions Karel Bos & his architectural works.
https://atrium.ukdw.ac.id/index.php/jurnalarsitektur/article/download/235/207/1910
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21.) (select YOUR language): GREAT WEBSITE with info & photos of TEMPO DOELOE MALANG, and shows some of the works of Karel Bos. "Menelusuri Malang Tempo Doeloe" ("Browse Malang Tempoe Doeloe")
https://tawangsarikampoengsedjarah.wordpress.com/2017/10/13/menelusuri-malang-tempoe-doeloe/
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22.) STUDY OF OPEN-AIR MUSEUM ON KAYUTANGAN STREET CORRIDOR
Mentions Karel Bos repeatedly and has photos of his architectural works.
https://share.google/cWAwQwNmeSYxaI7Og
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23.) NYEPI HOLIDAYPACAKGE: Jalan Semeru which is inspired by Karel Bos the architect (PDF)
Mentions Karel Bos and his architectural works.
https://distantreader.org/stacks/journals/eot/eot-36402.pdf
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24.) Untitled - Sejarah FIS UM (PDF)
Mentions Karel Bos and his architectural works.
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12. ) Place Attachment On Kayutangan Cultural-Heritage Area As Sustainable Public Space
Mentions Karel Bos and his architectural works.
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25. KAREL H. BOS is listed in WIKIPEDIA of The Netherlands!
https://nl.wikipedia.org/wiki/Lijst_van_architecten_in_Nederlands-Indie
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https://knightgenerous93.wordpress.com/page/5/
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re: WW2
27. KAREL H. BOS is listed in "TRACES of WAR" website!
Page dedicated to Karel H. G. Bos!
https://www.tracesofwar.com/persons/123895
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