In April 1781, the 25th Battalion remobilized for defense of the Potomac River Valley, and in May 1781 for defense of Georgetown.Archives of Maryland, Volume 45, pp. 383, 385, 391, 402-3 and Volume 47, pp. 169-70, 177, 179, 184, 188-9, 190-1, 192-3. The unit saw further service at Fredericktown and Old Fort Frederick through 1781.Revolutionary War survivors pension application files of Joshua Collins, S. 12530 and Richard Barrett, S. 12058, NARA RG 15; Archives of Maryland, Volumes 43, 45 and 48, passim.
