Mary was the first wife of John Ricard Conner. They had only one child, Cordelia Louisa, who died as an infant.
Obit: Deaths - Conner - In Brooklyn, E.D., Nov 16th, of consumption, Mary Rebecca Fonda, wife of John R. Conner, aged 26 years. The friends of the family, and the members or Charter Oak Lodge, No. 249, F. & A. M., are respectfully invited to attend the funeral, this (Monday) afternoon, at 1-1/2 o'clock, from 22 Grand st, Brooklyn, E.D. New York NY Sun, Monday, November 18, 1861.