Jonas Hegt was an architect in The Hague, an architectural advisor to the Jewish Community in Rotterdam, and the architect for the Jewish Community (Israëlische Gemeente) in Delft. He co-designed the synagogue at De Carpentierstraat 141, The Hague, which was built in 1937.
Addition of a visitor of the website.
For additional information see:
M. Nord et al. (eds.), Rebel, mijn hart: kunstenaars 1940-1945 (Zwolle 1995) 192.