GoDCers Love Maps Fort Pennsylvania at Tennallytown in 1862 Mar 5, 2013 Below is a great Civil War drawing from 1862. It shows Fort Pennsylvania at Tennallytown, one of the many forts ringing Washington during the Civil War. Fort Pennsylvania and encampment at Tennallytown near Washington, D.C. / drawn for Mr. George Baker by W.E. Cushing, Providence, R.I., 1862. Ghosts of DC via EmailWant to get our great content sent to you by email? Sign up here and we'll stay in touch!