Cameron, Simon (1799 - 1999); was an American businessman and politician. He represented Pennsylvania in the United States Senate and served as United States Secretary of War under President Abraham Lincoln at the start of the American Civil War.

A native of Maytown, Pennsylvania, Cameron made a fortune in railways, canals, and banking.[2] As a member of the Democratic Party, he won election to the Senate in 1845, serving until 1849. A persistent opponent of slavery, Cameron briefly joined the Know Nothing Party before switching to the Republican Party in 1856. He won election to another term in the Senate in 1857 and sought the Republican presidential nomination at the 1860 Republican National Convention. After the convention's first ballot, Cameron withdrew his name from consideration in favor of Lincoln, who went on to win the Republican nomination.

After Lincoln won the presidential election of 1860, he appointed Cameron as his first Secretary of War. Cameron's tenure was marked by allegations of corruption and lax management, and he was forced to resign in January 1862. He briefly served as the U.S. ambassador to Russia later that year. Cameron made a political comeback after the Civil War, winning election to the Senate in 1867. Cameron built a powerful state party machine that would dominate Pennsylvania politics for the next seventy years. He served in the Senate until 1877. Clipped signature from larger document at Secretary of War. 3 3/4" x 2 1/2". $75.00