See also

• Gertrude MERCER's parents: William T. MERCER (1812-1886) and Gertrude Ann FRELINGHUYSEN (1814-1886)
• Gertrude MERCER's siblings: Charlotte F. MERCER (1836-1895), Frederick F. MERCER (1840-1913), Theodore F. MERCER (1843- ), William MERCER (1845- ), Archibald MERCER (1847- ) and Dermont MERCER (1849- )