my name is Stefan Mueller and i read your post.
So, there is another Olexio from Kaiserslautern. Carl Olexio. He was a Carpenter.
I got this information from the Book Kaiserslautern in IInd World war. Publisher is the City Kaiserslautern. (Year of Pub. 2004). There a obviously no more Olexios living in Kaiserslautern Area, today.