Charles Carroll of Carrollton

(Wikipedia) Charles Carroll of Carrollton (September 19, 1737 – November 14, 1832) was a wealthy Maryland planter and an early advocate of independence from Great Britain. He served as a delegate to the Continental Congress and later as United States Senator for Maryland. He was the only Catholic and the longest-lived (and last surviving) signatory of the Declaration of Independence, dying at the age of 95. Continued

Image: Cornerstone of the Baltimore and Ohio Railroad laid by Carroll on July 4, 1828, now displayed at the B&O Railroad Museum.