↑Church baptism record Record at St. Gregory the Great Ch., Oshawa, Ont.; LDS reel 1305881, item # 2, p. 39.
QUAY 3 "The 10th [January 1853] was baptized Mark, born the 15th of August last of Thomas Healy and of Honora Healy; sponsors: Martin Tahany and Mary Coreghan; By me J. B. Proulx"