When Mary Charity Grant was born in 1724, in Greenland, New Hampshire, British Colonial America, her father, Joseph Grant, was 23 and her mother, Susannah Foss, was 23. She married William Philbrook Sr. about 1744, in Maine, United States. They were the parents of at least 5 sons and 3 daughters. She died about 1818, in Islesboro, Waldo, Maine, United States, at the age of 95.
Irish, English, and especially Scottish (of Norman origin): nickname from Anglo-Norman French graund, graunt ‘tall, large’ (Old French grand, grant, from Latin grandis), given either to a person of remarkable size, or else in a relative way to distinguish two bearers of the same personal name, often representatives of different generations within the same family.
English: from the rare Middle English (and Old English) personal name Grante or Grente.
Irish: in Ireland this is usually the Norman Scottish name (see 1 above), but it was also adopted for Irish Mag Raighne, see Graney .