Robert was born in 1831. Robert's father was Charles Forbes Mercer and his mother was Hannah Hallen. His paternal grandparents were Robert Mercer and Hanna Swift. He had a brother named George. He was the younger of the two children. He died at the age of 72 in 1903.
General Notes
Robert married Jane Newby, a dressmaker, in 1853. They had a daughter Hannah in 1854.