William Maclennan and his wife, Sarah (Dobson) Maclennan, were the parents of Theressa Sarah McLennan, the wife of John McCurdy. William was born in County Amagh, Ireland. Theressa was born in the United States. William's original farm was on lot 11, concession 6, Marlborough township. Later the family moved to lot 8, concession 6 where Sarah died. William died in Oxford-on-Rideau township at the home of John McCurdy's oldest daughter.