You have again done a good job locating records of my family. Urian (born Urach) Feigin was my great grandfather Morris's younger brother. I've essentially located all the relevant census records for my family (which wasn't so easy to do given lots of surname misspellings.) Urian's wife Lilian was Nathan Levitas's sister. It's possible that Froma Liba Levitt is a relative of theirs (Levitt is close to Levitas), but I know she's not another sibling.
I was aware of the Liebe Levit arrival record from June 22. Definitely not my great grandmother. This Liebe Levit is from the wrong place (Kiev, not Minsk), but more importantly, the Immigration and Naturalization Service made a notation on the manifest which associates this Liebe Levit with another person's naturalization petition and certificate of arrival -- not that of my great grandmother.
Again -- what I'm really seeking to understand is how the Immigration and Naturalization Service appears to have produced a certificate of arrival for my great grandmother that is completely mistaken. Unless I'm misunderstanding something.