[Ger-Poland-Volhynia] Numbers on Ship's manifest

[Walter & Barbara Treichel]

Hi Michael
    On my uncle's Passenger List there are also a couple of numbers one is
the number of  the Certificate of Arrival that was issued and it's date, I
can not match the others with either of his Declaration of Intention of his
Petition for Naturalization but probably has to do with the process. Another
uncle's numbers has Det (persumed Detriot, Michigan)
Walter A Treichel