Looks like have have the right source for the information.
Anyway, I did find that the Mouck Family Tree (re: Ancestry.ca) shows William Hunt married to Barbara A. Thompson. William's (William T.) parents are Israel Hunt and Lucinda ?. Barbara's parents are Levi Thompson and Margaret Ann Martin.
A sister of Babara Thompson's, Eliza Jane, married John Mouck. So, your info is probably good???
I only found one child, Ida May Hunt b. abt 1870, Ont. in the 1871 census. She isn't in any future census, so probably died. Also, in the 1901 census an Edith Thompson age 15yrs is living with them. This might be Jeremiah Thompson and Caroline Hains' child since in 1901 he is widowed and living by himself, if I have the right person. In the 1911 census, William Hunt is a servant, widow living by himself, again if this is the right person.
Might be the right Barbara Thompson???