You are looking for a person who was an alien in 1917, lived in NY, had a wife and 2 children and signed his name in Hebrew letters as Harry Ackerman הערי אקערמאן

If you limit your seach to H* Ackerman with a wife named Anna in immigration data on family search, you'll find:
New York, Southern District, U.S District Court Naturalization Records, 1824-1946; https://familysearch.org/ark:/61903/3:1:3QS7-L9HD-59X8?cc=2060123&wc=M5PD-449%3A351611901

This even has his picture, and the date of his marriage in the US.  The ship he arrived on, the name he had then.



--
Odeda Zlotnick
Jerusalem, Israel.