I know all of that. In all of my searching so far I have not come across any with the other spelling. I have found that there are alot of Kittleson and Kittelson families that are not related. I have the Kittelson side of my family done back to 1844 and they are all spelled with an el. It is in locating living relatives and relatives that never came over here or that came over at a different time. I relize that they may be spelled differently but even in different spellings I have not found any one new. Shanna