On his Declaration of intention he wrote down Baczach, Lomzgnskie Poland as his home. I can not seem to find a town or village named Baczach.
The trick is to know a bit about Polish grammar. If he was writing the declaration in English style, but with correct Polish spelling, that would be: "born in Bacze, region of £omża."
He used Polish style using declensions and referring to the region of £omża using the adjective "łomżyńskie".
The name Bacze is derived from the verb "baczyć" - to watch, to pay attention, to see, to forgive.
There is a village Bacze Suche ("Dry Bacze"), municipality of £omża (gmina £omża), £omża County (powiat), Podlaskie Voivodeship, in north-eastern Poland.It lies approximately 10 kilometres (6 mi) south of £omża and 71 km (44 mi) west of the regional capital Białystok.
en.wikipedia.org/wiki/Bacze_Suche
There is also a village Bacze Mokre ("Wet Bacze"), same gmina, but different county (Zambrów) - 10 km away from Bacze Suche by road.
And finally, there is also a settlement Bacze-Lipnik, the same gmina, 8 km to Bacze Mokre.
One more village - "Bacze" is located about 140 km west of the three villages mentioned above, so forget it.