I stumbled across this site and found your message interesting. I have an Uncle, Drexel Agner.He was my father's brother. No relation to you I'm sure - just thought it interesting to see another person named Drexel Agner.It's not avery common name. We live in Northern Florida and there are very few Agner's left here. Drexel (my Uncle) also still lives here.
I hope you find answers regarding your family. Agner seems to be a rare name.