Hi List, I am looking for information on a Martin and Mary Manko(Mankowski). Her date of birth is different on every census but it appears to be late 1860's. Her maiden name was Kostrzewski. They had 5 children - John, Stella, Adam, Leo and Stanley. They lived on Lansing Avenue in Cleveland. I believe she is the sister of my great great grandfather and I am trying to tie it together. Any help woul dbe greatly appreciated. Thanks, Gina Ramsey