I am John Carr Callen's 2G grandson. I too have discovered the discrepancy in un-documented accounts showing Ross as the father, but Ross's obituary written by his daughter's that you referenced makes it pretty clear Ross was JCC's uncle not his father. Have you found any records yet for the family of Robert H. Callen that substantiates your belief that my John Carr Callen, your Dorcas Callen and Robert H. Callen Jr. are his children?