Looking for any records relating to my Polish born great grandmother Johanna Pospeieszna listed in Baltimore MD census in 1940 but not 1950. She was living with my grandparents Louis & Martha Konieczny in 1940 census at 619 S. Milton Ave. in Baltimore MD. She is listed as widowed, 75 years of age, so Pospeieszna may be her maiden name and I believe her married name was Johanna Boracki.
Any help is appreciated. I need to verify that she and my great grandfather on my grandmother's side were born in Poland.