I know this post is really old, but I am also looking for a John A Dintaman. I have him married to Annie Airsman/Ehrisman. I do have some differences then you, but they seem to line up pretty good.
I have them having four children, 3 boys and 1 girl.
Frank Sanford Dintaman, 1881-1957
John Albert Dintaman, 1886-1952
Anne Dintaman, no dates
Charles Dintaman, no dates
I am trying to connect John to the Dinterman family of Frederick Maryland. Some of John Albert's children took the name Dinterman.
I hope that you're still out there and might have more information at this point.