I guess anything was possible. I think I see you and your mother in the 1940 census were you born around 1938? It does state that your mother is the head of the household 26 yrs old and you were 2. It does state that your mother still listed herself as married but there is no husband listed. Do you think that maybe the marriage was secret because of the Jewish-Christian relationship? It was also a very volatile time being that WWII was starting up. Have you tried searching for anything under your mother's other married name? Sometimes that will give you a lead also. I was unable to come up with any leads under Mulassi. Was she born here or in Italy? Do you know her parents names? They are usually listed on a marriage license. I wish I could be more help on this but I am also stuck.