Mary Colley (1723-1794) (1723–1794) Parents Henry Colley Mary Hamilton Children John Pomeroy, 4th Viscount Harberton Arthur James Pomeroy, 3rd Viscount Harberton Henrietta Judith Pomeroy Henry Pomeroy, 2nd Viscount Harberton Mary Pomeroy Partners Arthur Pomeroy, 1st Viscount Harberton