Isador married Barbara Faeth in 1897 in New York, USA. Barbara (daughter of Johannes Fäth Faeth and Anna Maria Funck) was born in 0Apr 1878 in New York, USA; died on 31 Jan 1959 in Brooklyn, Kings County, New York, USA. [Group Sheet] [Family Chart]

1. Charles Blank was born in 0May 1898 in New York, USA.
2. Raymond H. Blank was born on 1 Jan 1916 in Manhattan, New York City, New York, USA; died on 7 Nov 2016 in Waterbury, New Haven County, Connecticut, USA; was buried on 10 Nov 2016 in Saint John's Cemetery, Middle Village, Queens County, New York, USA.
3. Rosemarie Blank was born on 4 Apr 1917 in New York, USA; died on 27 May 2004.