The LDS film is a microfilm copy of the birth, death and marriage records of the Catholic church of Morzewo Prussia produced by the Mormans Church of Latter Day Saints. They have done this all over the world. See familysearch.org for their site. I was looking for Martin Radtke, my great grandfather as his obit said he emigrated from there. There doesn't appear to be a connection to your family. There are Radtke/Radke/Rathke/Radka families in Schneidermuhl and Gdansk that I haven't connected. I just wanted to inform you there are other families with the same variations of name and where they were. Radka seems to be the Prussian/German way of saying Radke. The Prussian e-mail list on Rootsweb.com has a person with a Gdansk connection. I cannot remember his name, however. Search the archived messages there for Gdansk.