Schirmer and Markwart
I don't speak german and I have problems with english, so sorry.
My grandfather was born in Wladimir-Wolinski in 1911.
His parents surnames: Rajnold Szirmer and Julianna Markwant. When she married with Rajnold, she changed surname to Szirmer. I don't know, where they were born.
Probably, their names and surnames were polonized, so original names are Reinhold Schirmer and Juliane Markwart - propably Markwant is real surname, not Markwant.
I found on https://www.sggee.org/sggee/publicSearch
Birth and confimation records.
And that:
Lost Relatives List - Saratov Volkszeitung Newspaper
How to confirm, that is my family? I am sure that they. Any one can help me?