Alouis Herman Son (Loe) from Rotterdam was a son of Mozes Joseph Son and Hermine Fischer. On 22 March 1942 he was engaged to Betje (Bep) Braadbaart, from Dordrecht, a dauchter of Philip Jacob Braadbaart and Kaatje Breemer.
City Archive of Rotterdam, family registration card of Moses Joseph Son and Het Joodsche Weekblad (Jewish Weekly) of 20 March 1942.