Most immigrant names were changed by the immigrant.
*not* at Ellis Island, not on the voyage, not by a clerk.
Keep in mind there were more ports of entry than Ellis Island.
My ggrandfather came to the US as Joil Povlotsky.
He later changed his name to Louis Haas. No rhyme or reason.
I can't figure out why he chose that name which was German
and not Russian.
He started out on some documents as Louis Hase then to Haas.
He was naturalized as Haas and did not put his real name
anywhere on his papers. I was the one who discovered the
name change as everyone in the family believed the name
was Haas and not Povlotsky.
He seems to be the only one in his immediate family that did
this name change and his descendants carried the name Haas.
I discovered in my research that the "real" family name was
Povlotsky and found other Povlotskys that I am related to.
Researching: SPECTER, POVLOTSKY, BASS, TEPEROWITZ, ACHRAMOWITZ,
KRZEWIN, CYMES, SLEPAK