I am tracing my paternal great grandfather, Casimir (Charles) Stanley Tyminski. He was born in 1880, Macerow, Poland. He came to the US in 1901 with his wife, Katherine Barron, also from Poland.
Surname: Tyminski
He was born in 1880, Macerow, Poland.
Very unlikely place name, since this has no meaning in Polish language. Macerów (o with acute) looks a bit better, but still not that good. Macierów, or Maciorów - still not found by Google. But MACIEJÓW represents several villages in Poland.
Katherine Barron
A very rare surname in Poland. There are only 8 people of that name, and they all live in town called Pleszew.
On the other hand the surname BARON (with single R) is a bit more popular. There are 5226 people of this surname, living mostly in Silesian and Opole voivodships. BARON is also quite popular in Germany (estimated 7154 persons), but not Barron (estimated 117 people).
Make sure that you have all spellings right.