(1816-1892) a U.S. Representative, was born in North Gray on June 21, 1816. He attended the public schools and was tutored privately at home, later moving to Gray.
A member of the Maine House of Representatives in 1845, 1847, and 1848, Mayall served in the Maine State Senate in 1847 and 1848. He declined the Democratic nomination as a candidate for Representative to the Thirty-second Congress, but was elected as a Democrat to the Thirty-third Congress (March 4, 1853-March 3, 1855). He was not a candidate for renomination in 1854, but two years later he was a delegate to the Republican National Convention in 1856.
Mayall moved to St. Paul, Minnesota in 1857 and became a large landowner. He was commissioned as a captain at the beginning of the Civil War. After his service in that war, he devoted his time to looking after his large business interests. Mayall died in St. Paul on September 17, 1892, with interment in Oakland Cemetery.
Additional resources
Samuel Mayall Congressional Biography: https://bioguideretro.congress.gov/Home/MemberDetails?memIndex=M000278 (accessed December 30, 2020)
From what state was Mr. Mayall a delegate to the 1856 convention? I don’t see his name listed as a delegate from either Maine or Minnesota
The info came from http://bioguide.congress.gov/biosearch/biosearch1.asp. Other online sources seem to copy that short bio. It seems likely he was representing Maine, since he moved the the next year to Minnesota. Maybe because it was first Republican National Convention, held at Lafayette Hall in Pittsburgh on February 22–23, 1856, records may not be complete. Best guess!