Louis Boas was a son of Alexander Boas and Rachel Koen. He married 10 April 1924 Roza Pimontel, daughter of Salomon Pimontel and Sara Swart. The couple had no children.
From the first marriage of his father to Catharina Walvisch, solomnizes in Amsterdam on 7 May 1873, Louis had three brothers: Barend (who passed away in 1936 and who was married Klaartje Roet, Salomon and Jochem , who were unmarrie…