My husband is the grandson of William H. Hartzell. William and your grandfather Robert are brothers. I just found your post and I am curious if we could share some info. I have newspaper clippings of Bertha and Melvin deaths.There was some pictures of the family on Williams (Bill's) wall that I've seen back in 2006. I have not seen them since his passing. I would love to see some pictures if you have some.