Keep searching and make sure info is correct

The marriage records of a woman listed her as a Smith. A later census record showed she had 9 children with 6 still living. The children with the current husband did not seem to add up to the 9 children. The span in years for her pre-marriage to current marriage was across the 1890 void of census records, and we know the birth records are spotty for that period in the local court houses. I found a later census record with this woman living with an adult daughter after my "Smith" became a widow and living with them was a "brother-in-law" of the head of household son-in-law. The brother-in-law's last name was different from what I would have expected. I started looking for another marriage for that original "Smith" woman. I found one but couldn't prove it was her either. I finally found a death certificate for her and then went to look on find-a-grave and some kind hearted soul had posted a photo of this woman's tombstone. Boldly printed on that tombstone was the maiden name that I had thought I'd found, but been unable to prove, along with the final married name. Thank goodness for all the genealogy community doing the wonderful work that you do.