‎manArthur Isidore Isaac - Keiser‏‎
Born ‎3- jun 1866 Eijsden, Netherland‎. Son of Isidore Israel Isaac - Marx and Catharina Aron Keiser - Goudsmit‏

Married ‎4- aug 1896 Amsterdam, Netherland to:

‎womanElla Goudsmit - Keiser‏‎
Born ‎13-2-1874 Amsterdam, Netherland‎. Daughter of Simon Philip Goudsmit and Sara Keiser‏

Children:

1)
‎womanNelly Arthur Isaac - Goudsmit‏‎
Born ‎± 1895‎
2)
‎manSiegfried Isaac - Goudsmit‏‎
Born ‎8- jul 1900 Amsterdam, Netherland, died ‎28-8-1948 Amsterdam, Netherland‎, 47 or 48 years. Occupation: Secretary board of directors Bijenkorf, lawyer
3)
‎manHenri Isidore Isaac - Goudsmit‏‎
Born ‎± 1905‎
4)
‎manHugo Arthur Isaac - Goudsmit‏‎
Born ‎1910‎