More than 86 census records are available for the McKinley family, from both 1901 and 1911.
Sample 1901 Albert census records about the McKinley family available from Ancestry.ca:
A McKinley family household of at least 7 members residing in the district of Albert was recorded in 1901. The head of household, James McKinley, was born in "Alma" in 1866. He identified his heritage as Irish. By 1901, at the age of 35, he had an occupation that was recorded as "Farmer". James's wife was Hattie McKinley, who was 32 years old. Hattie was born in "Alma" in 1868. She also identified her heritage as Irish. James and Hattie had 5 children, 4 boys and a girl. In 1891 their eldest child, a boy named Charles, was born. One year later, in 1892, when James was 26 years old and Hattie was 24 years old their second son, who was named Cordie, was born. Then, in 1894, with their two older sons ages 3 years and 2 years, their third son, Calvin, was born. In 1901 another son, their fourth child, Claud, was born. James and Hattie's first daughter was born in 1899 and was named Clyde. . Thus, at the time of the 1901 census, this McKinley family household was filled with 5 children whose ages were 2, 5, 7, 8, and 9 years.