I recently discovered documents referring to someone I believe to be a gr-gr uncle who was married in "St. John's Church at Danzig Kingdom of Prussia in 1853." I am totally at a loss as to how to proceed from here. Can anyone help me and give me advice on how to acquire these records. This would be a valuable link to me since it would link this individual to my gr-gr grandmother. Please help, if you can. Thank you.
Jean