"Madam"

As commenter RJO pointed out, it is quite unusual to see the title "Madam" on New England gravestones. I was in Burlington, MA recently and was surprised to find two examples:

Madam Hannah Peters

d. 1782

Burlington, MA

Madam Abigail Jones

d. 1814

Burlington, MA

Both Hannah and Abigail were the widows of ministers, as was Jane Robbins, so I imagine that "Madam" was probably a way of honoring the wives of illustrious men.

Cuffe

"faithful black domestic of Madam Abigail Jones"

d. 1813

Burlington, MA