1920 U.S. Census lists Louis, Helen, & Wilmer Gross as living with Helen's parents on West 116th St., New York, New York,

1930 U.S. Census lists father-in-law "Bernart" and sister-in-law Edna living with Louis, Helen, Wilmer & Eugene at 16 Eliot Place, Bronx, New York.
- Louis' occupation is "Business Broker, Groceries"

1940 U.S. Census lists Louis, Helen, Wilmer, Eugene and sister-in-law Edna Alexander living on Eliot Place, Bronx, NY. [227]

1943: Edna Alexander’s cemetery record lists as a contact her sister, Helen Gross living at 16 Eliot Place, Bronx, NY

1985 Obituary lists four grandchildren:
- Hillary
- Stewart
- Ethan
- Dorian

A Louis Gross living in New Brunswick, NJ gave the following information on his World War I draft card:
- address 283 ...lson St., New Brunswich, NJ
- born July 18, 1892 in Sgileszo, Abasej, Hungary (Szikszo, Borsod-Abaúj-Zemplén, Hungary?)
- working as a clerk at N. H. Gross at same address at which he was living
- he was single
- card filled out in 1917
[1917 New Brunswick Directory lists Nicholas H Gross, whol liquors at 285 Neilson.]