Re: Dora nee Grossman & George Cohen, their three sons Kenneth, Jerome and Robert Lefrak City, NY #usa #general
Some information about George Cohen's family,
His parents Samuel Cohen and Jennie Rappaport got married in 1904
Apparently you a were wrong about his birth year. It was 1908 and not 1910. His Jewish name was Joseph and this name appears in documents until the early 30s. Here are birth records for him and his brothers as well as his sister's death record.
The family in the 1910 census
1930 census (notice that family lives at 696 Watkins Str, the one that appears in his marriage certificate)
George Cohen died in Bronx on Oct 29, 1994. In the social security application and claims index you will find the number of his death certificate. If you manage to obtain it, you will be able to discover where he was burried.