It seems that William's baptism was at St. Raphaels on June 11, 1827, born 4 days earlier to John McRae and Mary MacDonald of Indian Lands. There seems to be two other baptisms for this couple at St. Andrews... a Duncan baptized April 26, 1829, born 17 days earlier, to a John McRae and Mary McDonald of Lot 6, 8th Concession, Indian Lands... a Rhoderick baptized June 20, 1833 (no birth date given) to a John McRae and Mary MacDonell. Could find nothing pertinent at St. Regis.
Did find John of 8C N6 in father John's Diary: John on Jul 8, 1866, Indian Land N. Br., 8C N6, son of Nancy Chisholm and son of Duncan of Alex. Also found his burial entry at St. Raphaels: John McRae buried Jul 10, 1866, died 2 days ago, the son of Duncan MacRae and Nancy Chisholm, aged 60 years, of Indian Lands, 8th, Lot 6, North Branch.