Thank you in advance,
I received this information and now would like to find the Vessel documentation, manifest, passenger list, etc. Where do I go from here? Is anyone in Washington that might be able to assist? I am in MD.

""This is to certify that the following named alien arrived at the port indicated, on the date and in the manner described below, Viz:
Name of alien: POYUROVSKI, Jacob
Port of Entry: Seattle, Wash.
Date of arrival: February 7th, 1916
Name of Vessel* Manila Maru.""