John Crain Kunkel was a Republican member of the U.S. House of Representatives from Pennsylvania. He was the grandson of John Christian Kunkel, great-grandson of John Sergeant, and great-great-grandson of Jonathan Dickinson Sergeant and Robert Whitehill. The John Crain Kunkel and Katherine Smoot Kunkel Memorial in Riverfront Park in Harrisburg, Pennsylvania, also known as "Kunkel Plaza," is a scenic amphitheater at Front Street & State Street down from the Pennsylvania State Capitol along the Susquehanna River dedicated in 1992 for their many years of service and dedication to the community.

John Sergeant was an American politician who represented Pennsylvania in the United States House of Representatives. He was the National Republican Party's vice presidential nominee in the 1832 presidential election, serving on a ticket with Senator Henry Clay.