Who is Capt. Lynch and Mr. Fitzgibbon 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

Captain Lynch is the broken-nosed, incorruptible sea captain John Charity Spring chose to transport Sir Harry Flashman to Baltimore, MD. He is described as a powerful man and supporter of slavery. When Lynch discovers that Flashman is anti-slavery, he assigns Fitzgibbon to fulfill his duties.