John Karlak Maybe?

Photo reads "Sincerely, John." I have a couple of photos of him with the Karlak family of NY (Ignatius and his wife Julia, their son Nicholas and his wife Anne Glowatch Karlak). None of the photos have family names on them. I think the photos may have been taken at a Karlak family residence in Queens, NY in the early 1940's.

If you know who this is, please let me know. There was a Karlak family living in Queens who had a son, John. I have photos of a woman who I think might be his sister also. I would like to give these photos to their families.