Who is Francis Jackson (Frank) Meriam from Flashman & the Angel of the Lord: From the Flashman Papers, 1858-59 and what is their importance? "Flashman_&_the_Angel_of_the_Lord:_From_the_Flashman_Papers

A tall man with a limp and missing one eye, Meriam arrives at the Kennedy Farm in the company of John Henry Kagi, bearing $600, just as John Brown's finances run out. Brown declares him God-sent. Knowing that this insures Brown's attack on Harper's Ferry, narrator Sir Harry Flashman makes a break for freedom, but is captured by Joe Simmons before he can leave the barn.