Boris Kahn was a mathematics and mechanics teacher at the Joods Lyceum in The Hague.
Data on the staff at the Joods Lyceum [secondary school that the Nazis forced Jewish students to attend] in The Hague.The records of the Joods Lyceum (the secondary school that the Nazis forced Jewish students to attend) in The Hague are kept at the municipal archive in The Hague (inventory number 7).