Chris,
the more info you can provide upfront - the less work we have to do
on our end and thus it is more likely that you will be successful.
Have you discovered William Eilert Hayen's emigration record from about
May 14, 1914 through New York on the British Ship Horley but recorded
in the Baltimore Passenger Lists at a later date on ancestry.com?
It provides references to several files regarding his immigration that you might
wish to locate as well as a work history for William from 1914-1919. It also
notes on the second page that he was born in Bremen, Germany. It appears
that he was a seaman on the British ship. If you are aware of this passenger
list record, have you pursued obtaining the various files it mentions?
If you don't have access to ancestry, I can send you a copy of the page.
Bob Behnen
Kirksville, MO