I was intrigued by your posting due to a similarity in names and the relative proximity of locales.
I am researching a Brousseau/Brusseau family (please refer to my postings in this forum for fuller details) in St Lawrence county, NY. The parents' names are as yet unknown, but so three children of an American-born Brusseau/Brousseau father and his Canadian- born wife are known. They are, in birth order, a. Mary C. Brusseau, b. ca 1823-24 in Canada (m.1 Gilbert Wakefield, and lived in the Parishville/ Hopkinton area of St Lawrence county; m.2, a Mr Hancock, and apparently resided in Indiana; twice widowed by 1880, m. 3. Mr Berry), b. William Brusseau, b. 1829, NY, d. 1886, Boonsboro, Iowa (m.1 ca 1854 in NY, Adaline LeValley/ Levielle [probably correctly, Adeline Leveille] by whom he had two children, Amos and Ida; m. 2, circa 1863 in Iowa, his first wife's possible sister, Carolyn LeValley/ Levielle [probably correctly Caroline Leveille], by whom he had further issue) and c. Peter Brusseau, b. 12 March 1835 in NY, who lived at Parishville, St Lawrence county, NY, in the 1870 census (when he had a wife Leonora, born in Maine, aged 34, and a son Harvey, aged 4, who is said, as Harry to have died in 1880), and was recorded as being a farmer of 100 acres there in "Child's Gazetteer of St Lawrence county, NY" (1873-4) in the Hopkinton section of the inhabitant lists. He went to Canada in 1882, settling in the vicinity of his nephew, Alvah Gilbert 'Gil' Wakefield (b. 7 June 1849, Parishville, St Lawrence county, NY, the son of his sister Mary and her first husband Gilbert/Samuel Wakefield), at Rossburn, Manitoba (Alvah went to Canada in 1872, was in Winnipeg, MB in 1881,and settled in Rossburn in 1882, becoming a naturalised British subject in 1888). A niece, Lucretia Sabin Wakefield, another child of Mary Brusseau and her first husband Wakefield, arrived in Rossburn in October 1888 from Pleasant Valley, St Croix county, WI, with her husband Joseph J. Merritt (1840-1910) whom she had married in Hopkinton, St Lawrence county, NY before a Justice of the Peace on 4 Feb. 1866, and their 7 children, five of whom died within 2 months of their arrival in Canada from diphtheria.
I wonder if you have any knowledge of these Brusseaux/Brousseaux? The three known children Mary, William and Peter all bear names listed as being among the names of the children of Edward Brousseau of Clinton county, NY. It would be great to have a better fix on the dates you are speaking of for this family as flourishing in the 19th century. Perhaps there's a connexion.
Looking forward to hearing from you.