Hi Warren:
Are you sure the name is "Gecomsky"? I couldn't find such a surname as having ever existed anywhere in the world. I even seached for this surname at a world-wide ancestry site and it doesn't recognize "Gecomsky".
Perhaps someone reading the original handwritten(?) documents mis-identified the name? I've seen many many instances when a document is handwritten that a person's name gets absolutely butchered (e.g.,
Joseph Wehner has been identified as "Weaner"). Or, the person reading the document can't read the handwriting and takes a guess.
Anyhoo, unless Gecomsky is an ultra-rare surname, this is the conclusion I'm leaning towards on the mysterious name.
Cheers, Amy