My grandfather, Jacob B., was your grandfather's brother. Jacob's son, John H., is my dad. Jacob and Anna divorced and my dad and his brother, Kenneth, were partially raised in the Concordia Home orphange in Pennsylvania.
I have pictures of Irving and his sons including your dad, Glenn, that my dad must have gotten from Jacob.
I know so little history of the family and although my dad is still alive, 94yrs, he knew little about his Dad's family. I will however ask him; his long-term memory is still amazingly good. I had noted that Charles and Mary E. were married after Irving's birth.