The D L Hadaway you are referring to is Dwight Lowell Hadaway and has lived all his life in Casco Twp, Allegan Co. Michigan.
I too am a relation to Orin. I have been researching the Hadaways for a number of yrs as my Grandmothers maiden name was Hadaway. (Joyce E Hadaway Paquin).
Orin's father James and my GG Grandfather Samuel were brothers.