Index to US Invalid Pension Records, 1801-1815 (1991/2020), by M. June Clark. This is the index to a ledger titled the Revolution War and Acts of Military Establishments, Invalid Pension Payments, March 1801-1815. This voluminous source document is an 18 x 25” ledger, 3 inches thick and unindexed. Compiled by author and genealogist M. June Clark, this work serves as a guide to tracing claims for injuries and deaths of American soldiers in the Revolutionary War filed between 1801 and 1815.