Is this the Sarah who was John's second wife?

I recently found a Sarah J. H. Howard who was buried in the South Jordan Memorial Park Cemetery (Grave Location: 6-84-4). Date of death was 16 Mar 1924 and burial date was 19 Mar 1924. She was born in Canada, died in Riverton, Utah, and her age at death was 81 years, 9 months, and 5 days according to the cemetery's information. That would have made her birth date 11 Jun 1842, which is pretty close to Sarah Herwin's birth year (1843) in Ancestral File. Furthermore, Riverton & South Jordan are not too far from Sandy, where John Richards Howard was living at the time. If anyone has any additional thoughts or information, I'd love to hear it.