The only documented primary sources for this action originate with Peter Francisco himself. One source is Francisco's 1829 application to the United States Congress for financial support. His request was rejected on the grounds that he was already receiving a military pension.Niles, p. 340 The other is a similar letter addressed to the Virginia State Assembly in 1820.Francisco, Letter to the General Assembly The two accounts differ in some details, but much of the narrative is essentially the same. No other sources are known to corroborate the events he describes; Tarleton, in his memoir, only generally mentions casualties that occurred during the expedition.Tarleton, p. 369
