I have Ann McGilllis daughter of John & Janet McMaster married to James Paiper.
Her siblings being: Archibald, Mary 1782-1845, Sarah Married 1807, Catherine married 1810, William 1789-1791,
Margaret 1791-1844, Ann, Isabelle unmarried, John Angus Married 1806, John died 1856, Hugh drowned age 3 yrs in Terrebonne River where family lived for 9 years before coming to Glengarry.
For John mcGillis I have his dates as 1760-1804.
Dates for Janet McMaster: 1765-1833