Correct cohesiveness mistakes in the text:
Widely respected by all parts of New Orleans society as a southerner who never surrendered, Derringer is recruited by the Federal City Administrator, John Colton, to work as a secret agent at no pay ;. Only John Colton knows of Derringer's special role.
Widely respected by all parts of New Orleans society as a southerner who never surrendered, Derringer is recruited by the Federal City Administrator, John Colton, to work as a secret agent at no pay ; and only Colton knows of his special role.