Thomas Mundy Peterson (October 6, 1824 – February 4, 1904) of Perth Amboy, New Jersey has been claimed to be the first African-American to vote in an election under the just-enacted provisions of the 15th Amendment to the United States Constitution. His vote was cast on March 31, 1870; the Amendment had been ratified almost two months earlier, on February 3, but was only officially certified by Secretary of State Hamilton Fish on March 30th.
Peterson is most notably remembered for voting in the local election held at Perth Amboy City Hall over the town's charter. Some citizens wanted to revise the existing charter while others wished to abandon the charter altogether in favor of a township form of government. Peterson cast his ballot in favor of revising the existing charter. This side won 230 to 63. Peterson was afterward appointed to be a member of the committee of seven that made subsequent amendments leading to the final version that was approved by the State Legislature on April 5, 1871.
To honor Thomas Mundy Peterson as the first African-American voter after the passage of the 15th Amendment, the citizens of Perth Amboy raised $70 ($2100 in 2021 dollars) to award him with a gold medal. The full medal consists of a gold bar from which a two-inch diameter medallion was hung. The hanging medal featured a profile bust of a clean-shaven Abraham Lincoln. It was presented to Thomas Mundy Peterson on Memorial Day, which was then called Decoration Day, May 30, 1884. James Kearny, on behalf of the people of Perth Amboy, presented Mr. Peterson with his medal, which he is said to have loved and never considered himself properly dressed without it affixed to his left breast.