More than 85 census records are available for the Kelly family, from both 1901 and 1911.
Sample 1901 Argenteuil census records about the Kelly family available from Ancestry.ca:
A Kelly family household of at least 7 members residing in the district of Argenteuil was recorded in 1901. The head of household, Lemuel Kelly, was born in Quebec in 1863. He identified his heritage as Irish. By 1901, at the age of 37, he had an occupation that was recorded as "Farmer". Lemuel's wife was Margaret Kelly, who was 39 years old. Margaret was born in Quebec in 1861. She also identified her heritage as Irish. Lemuel and Margaret had 5 children, 4 boys and a girl. In 1890 their eldest child, a boy named Lemuel, was born. Two years later, in 1892, when Lemuel was 29 years old and Margaret was 31 years old their second child, this time a daughter, who was named Margaret, was born. Then, in 1894, with their two children ages 4 years and 2 years, their third child, William, was born. In 1901 another son, their fourth child and third boy, Percy, was born. With four other children in the household, their fifth child and fourth boy, Samuel, was born in 1899. Thus, at the time of the 1901 census, this Kelly family household was filled with 5 children whose ages were 2, 3, 6, 8, and 10 years.