More than 39 census records are available for the Ferguson family, from both 1901 and 1911.
Sample 1901 Cumberland census records about the Ferguson family available from Ancestry.ca:
A Ferguson family household of at least 8 members residing in the district of Cumberland was recorded in 1901. The head of household, David Ferguson, was born in Nova Scotia in 1848. He identified his heritage as Irish. By 1901, at the age of 52, he had an occupation that was recorded as "Farmer". David's wife was Rachel Ferguson, who was 46 years old. Rachel was born in Nova Scotia in 1855. She also identified her heritage as Irish. David and Rachel had 6 children, 3 boys and 3 girls. In 1882 their eldest child, a girl named Annie, was born. That same year1882, when David was 34 years old and Rachel was 27 years old their second child, this time a son, who was named John, was born. Then, in 1884, with their two children ages 2 years and 2 years, their third child, Ella, was born. In 1901 another daughter, their fourth child and third girl, Beatrice, was born. With four other children in the household, their fifth child and second boy, Joseph, was born in 1889. He was followed by 1 more child: their son David, born in 1895. Thus, at the time of the 1901 census, this Ferguson family household was filled with 6 children whose ages were 6, 11, 13, 16, 18, and 20 years.