Hi, just answering your post. I am a Kaelin, my father being Victor Martin Kaelin. His father was Martin Kaelin from Louisville I believe.
He was raised w/2 sisters, and then later found 5 other half siblings from a previous marriage of his fathers. (He did not find these siblings
until he was in his late 40's. We all live in Massachusetts, his half brothers and sisters are scattered from NH to Texas and in-between. I would love to know more about your family. Any ties?