The names Norcot and Norgate were interchangeable, so I agree that Catherine Murren married William Norgate, but that it was probably not the one born in Ropley, but the one born in Hinton Ampner.
According to Betyty's post on 5 oct 2010, army records have his place of birth as Hinton Ampner anyway, and not Ropley.
There were actually 7 William Norgates (of various spellings!) born in the area between 1782 and 1798.