Looking for Info on Edward Freeman

I see my husbands Grandfather on maternal side, in the 1920 &1930 census. His name is Edward Freeman married to Mary Ellen Gilmartin. The census says he and his parents were born in New York. He might have been a hat maker or clothier. He was born around 1888-89. Looks like they lived in the Bronx. Trying to find out his ethnicity and from where his family originated from, his parents names, where he is buried and what he died from.....any help is appreciated, Lily