First Name = Last Name?

Met a guy in the Air Force with the last name of Sergeant. His rank was Sergeant.
Sergeant Sergeant
My XO at Cubi Pt. Was Capt. Officer.
I was in the Marines with a guy, Lcpl. Thrasher (that's thee worst name for a guy in boot camp!)
Friends OBGYN was Dr. Bush. Wife (Tracy) worked with a Tracy Tracy (married a Tracy!)
Mom had a family practitioner Dr. Bones, and there was a dentist around here named Dr Payne.
Billy Idols Guitarist is Steve Stevens. Went to grade school with a Candice Barr, Candy bar!