I am also decended from Bellersen(orig spelling of the name, parts of the family changed after the name had many misspellings over the years) same line, with kordenrock and leistner. My father was Martin, his father was Albert, albert was first cousin (I believe)to Frank Bellersen and and His mother was a Kordenbrock as was his step mother(after his mother passed his father marries her sister). My father is still living and may be able to help you fill in some blanks as well as some kordenbrocks I can put you in contact with. Dad may even have some pictures. I know we have a schawe wedding photo from the 40s in our collection. you can email me if you want some more info.