Philip Jacques van Geldere took over the bookshop of the Garnade brothers in 1930. Three years later he established the shop under the name 'Technische boekhandel v. h. Gebr. Garnade' at the Binnenwatersloot 28.'
See: J. Wijnberg-Stroz en M. van Lunteren-Spanjaard, Blijvers en voorbijgangers. Joden in Delft 1850-1960 (Kampen 1998) 89