- Lynch was appointed Justice of the Peace in Natchez in 1869.
- That same year, he was elected to the Mississippi House of Representatives. He was named Speaker of the House in January of 1872 when he was just 24, the first African-American to hold that position.
- At 26, Lynch was elected as the youngest member of the 43th US Congress (1873-1875.) He went on to serve two more terms (the 44th and 47th Congresses.)
- Lynch wrote two books in during his lifetime, The Facts of Reconstruction and Reminiscences of an Active Life, his autobiography. Both books are available at the Mississippi Library Commission.
|Poster promoting The Amazing Age of John Roy Lynchwritten by Chris Barton and illustrated by Don Tate|