First of all thank you for your cryptic remarks.
I have been researching this family for over 20 years. I began as you state with family members, newspaper clippings, pictures, etc. This provided me with my great great grandparents John Browe/Brault b. 10 Mar. 1844 in St. Jean, Quebec. John married Annie Smith b. abt 1845. Their parentage of the children was proven by the marriage records for the children (and birth record of their son Joseph in Westborough, MA). This was also confirmed by the census of 1881 for Camden Tp., Kent, ON. When working through the records it was noted that John Brow's widowed mother, and living siblings (except one) all moved to Westborough, MA (including John). The question was, and still is, why did Annie? I began an extensive search of the records to find Annie Smith's ancestry. The first clue, came from the fact that my great great uncle George Brow age 15 was living with his aunt Jane Turrill as recorded in the 1891 census of Chatham Tp., Kent, ON. The second clue was that Jane Turrill was the daughter of Samuel Smith and Nancy Hopper. The third clue was that the 1851 Census involving Samuel Smith of Chatham Tp. records a daughter Ann age 7 (which is the age my Annie Smith would have been at the time). The fourth clue came from the 1921 census which has a Browe cousin of mine living with Elam Smith Jr. and being referred to as a cousin of Elam Smith. On top of that, are some more circumstantial clues - for example my great grandmother was named Nancy Annie Browe. Annie Smith's mother was Nancy Hopper. A French researcher, Amedee Emery, once told me that a French person living in the Thamesville area was unheard of... yet there was John Browe. The answer is associated with the Smith family. It seems from the 1863 marriage record that Annie Smith married James McKenzie. I could not find the birth for John Browe Jr. in Massachusetts, however, he consistently stated that he had been born in Massachusetts. It may turn out that he was Annie's son by James McKenzie. Or, he may be from John Browe as well. I once interviewed his descendants, and they indicated an adoption - perhaps him? But without the records, just hearsay.
So, the probability that Annie Smith m. John Browe is Annie Smith daughter of Samuel Smith and Nancy Hopper is overwhelming. It makes sense of the data. A marriage record for John Browe and Annie Smith would be convenient, but as to this date, one has not been found.
As to the clues for Samuel Smith - I know how confusing Smiths can be, I descend from another Samuel Smith of Massachusetts on my Dexter side. However, given the fact that Annie was in Westborough (as per her son's birth record), and given that her other son John always said he was born in Massachusetts - Westborough, Worcester, MA is a good place to look for Samuel Smith's family. Why would Annie b. Ontario in 1845 end up in Westborough. A working theory could be work, or family in the area. Westborough may not be where Samuel Smith was born. He never claimed such, but he did claim his parents were born in the US - i.e. the 1891 census of Chatham Tp. Kent, ON.
So, to answer your cryptic, message, I am a very careful researcher, and am seeking to move the tree back - the query (even with the third party info) is one place to start. Again, thank you for the reminder to put facts out there.