1846 Birth:861 Birth date of 1846 estimated based on age (23 years) in 1870 census enumeration. Birth place of New York taken from same source.

1862 Marriage:960 "August Canada and Mary A. Grojean, filed Nov. 29, 1862, State of Michigan, County of Cass, that G. Lewis Clerk do hereby certify that on the twelfth day of August at the house of Sophiah Bunn in Calvin I did join in holy wedlock Augustus Canada aged 20 years and Mary A. Grojean aged 15 years both of Allen County, In., in the presence of two witnesses, to wit Ann Devoe and Emily Canada, both of Cass County, State of Michigan. Phineas Gregg, Justice of the Peace."

1870 U.S. Census:861 Mary enumerated in the household of her husband August Cannady in the 7th Ward, Fort Wayne, Allen County, Indiana as a female, age 23, white, keeping house, born in New York, father foreign born, mother foreign born, cannot read or write. Two daughters (Mary F., Emma) and one son (Frank) also residing in the household, along with Frank Grosjean, age 28, assumed to be a brother or cousin of Mary.

1877 Death of Husband:146, p. 91.,813 August Canada, white male, age 35, died 19 March 1877, Fort Wayne, Indiana. August Cannady’s obituary states that "he leaves a wife and five children."

1877 Presumed Death:961 Death apparently occurred between husband August’s death on 19 March 1877 and Joseph Dwenger’s guardianship petition for the Cannady children on 24 April 1877. However, no documented evidence of Mary Grosjean Cannady's death has yet been located.

1877 Guardianship:961 On 24 April 1877, Joseph Dwenger, Bishop of Fort Wayne, applied for and was granted guardianship of the five Cannady children (Mary F., Frankie, Emma, Georgie, and Flora) and administration of the estate of August Cannady.