Callahan Marriage Records: Groom Firstnames
- Richard (22)
- Ritchie Lee (1)
- Robert (25)
- Robert B (1)
- Robert J (2)
- Robert Joseph (1)
- Roger (1)
- Ronald (7)
- Rory (1)
- Russell (1)
- Thessalonia (1)
- Thoams (1)
- Thomas (53)
- Thomas L (1)
- Timothy (5)
- Tracy (1)
- Troy (1)
- Vincent (4)
- Vincent Daniel (1)
- Vincent James (1)
- Walter (4)
- Walter Edward (1)
- Wiliam (1)
- William (37)
- William E (1)
- William H. (2)
- William Lawrence (1)
- William Patrick (1)
- William T (2)
- Woodrow (1)