Built in 1833 by Charles Wilson for $2,700, Booth’s Mill Bridge is a three-arch bridge over Antietam Creek with spans of 45, 43, and 45 feet. It replaced a wooden bridge near the site of a powder mill. Also known as the Delamere Bridge, it stands near the pillared mansion Delamere, which the Reverend Bartholomew Booth operated as a boys’ school as early as 1776. The British-born clergyman taught the sons of such notables as Benedict Arnold, Robert Morris, financier of the Revolution, Richard Henry Lee, and Samuel Washington of Virginia.