Chaia Sore and Benjamin Dobromiewski arrived in the USA >from Bialystok
in 1885 with 8 children and within 2 days began using the surname Weisberg.
They had 3 more children in the USA. I have the 3 US birth
certificates, 11 marriage certificates, and 11 death certificates for
this family.

Here are the maiden names for Chaia Sore (Sarah in US) given on these
documents:
Benjamin, Wulinsky, Apelbaum, Farber, Weiss, Werner, Malkin, Rose.

I cannot find a JRI-Poland marriage record for Chaia Sore and Benjamin.
I cannot find an obvious birth record for Chaia Sore (about 1850) on
JRI-Poland using any of the above surnames.

Any suggestions on where to go >from here?

Bobby Furst
Redondo Beach, CA