Attached: Close up of the emigrating family (departing Hamburg, Germany) noting their place of origin (Hertz, Bohemia? hard to read). The immigration record (arriving New York) is clearer. "Your" Frank would be Franz on this record - presuming that his proximity to Ferdinand and Agnes Ullmann in the census shows he is their son. This would need to be proved by a death record etc. Perhaps you've already got all that.
Another researcher of this family:http://boards.ancestry.co.uk/surnames.ullmann/5/mb.ashx