Robert Peter Moseley b. 14 Feb 1732 m. Mary Magdalene Guerrant ... his parents were Robert Ligon Moseley m. Sarah Rachel Taylor ... he was married only once.
Robert Peter Moseley b. 15 Feb 1749 m. Sarah Peake ... his parents were Robert Moseley Jr m. (1) Lucy Gregg and (2) Margaret
These two men are different people and are unrelated.