This collection consists of two manuscript diaries of engineer James Brindley (1745-1820). Brindley, nephew of the celebrated English canal engineer of the same name, worked on a number of canal projects in the United States, including the Potomac Canal in Maryland and the James River Canal in Virginia. The two diaries cover part of the time Brindley worked on the Susquehanna and Conewago Canal in 1794-1795 and the Chesapeake and Delaware Canal in 1803.