Markings on the Manifest's Occupation Column  The most obvious
markings in the occupation column relate directly to an
occupation, and either correct or clarify the immigrant's trade.
But the most perplexing annotations in that column have nothing
to do with any occupation. Rather, they are number, letter, and
date codes relating to later naturalization activity. They can
be recognized by their being written--or the annotation
beginning--in the occupation column, and by their adherence to a
common format or style.  Numbers, Dates, Cryptic letters and
words . . . In 1926, the occupation column was set aside for
annotations relating to the verification of immigration records
for naturalization purposes. Since 1906, no immigrant who
arrived after June 29, 1906, could naturalize until the
government located their immigration record. Thus since 1906,
after an immigrant filed a Declaration of Intention or a
Petition for Naturalization in a naturalization court, the
Bureau of Naturalization was called upon to provid