[Ger-Poland-Volhynia] geography assistance: "Gruec"?

[Craig Schiller]

The problem is that the years I need to see are outside of that date
range. My great-grandfather was born in 1885, and to the best of our
knowledge all or most of his siblings were born after him. The years I
need to go through don't have document images up on the web, so I have
to either submit a manual request to the archive, or somehow find a
way to show up personally and search them myself.