He has/had a relationship with Eva Vos.
Child(ren):
http://www.genlias.nl/en/searchDetail.jsp?val=4&xtr=22436907&vgr=5
Source Civil register - Marriage
Archive location Noord-Hollands Archief
General Municipality: Amsterdam
Type of record: Huwelijksakte
Record number: reg.5;fol.30v
Registration date: 22-01-1920
Groom Michel Abraham Boas
Age: 21
Place of birth: Amsterdam
Bride Eva Vos
Age: 19
Place of birth: Amsterdam
Father groom Abraham Boas
Mother groom Rebecca Buijtekant
Father bride Salomon Vos
Mother bride Betje Lelie
Additional information beroep Bg.:cellist;beroep vader Bg.:koopman;beroep vader Bd.:diamantslijper
http://www.joodsmonument.nl/person/454306/en
Michel Abraham Boas and his family 'bb
De Surmontstraat 12, Nieuwer-Amstel 'bb
Michel Abraham Boas
Amsterdam, 16 November 1898
Sobibor, 21 May 1943
Head of family
Eva Boas-Vos 'bb
Amsterdam, 8 May 1900
Sobibor, 21 May 1943
Spouse
Betje Sientje Boas 'bb
Amsterdam, 7 April 1926
Sobibor, 16 July 1943
Daughter
Abraham Boas 'bb
Amsterdam, 5 June 1927
Sobibor, 21 May 1943
Son