Well, this is very easy, first up; what's a fugitive?
A fugitive is a person that has escaped a place/or is in hiding;to avoid arrest/persecution.
So traveling by wagons,railroads,and walking makes sense. Except for one, slave ships, that makes no sense at all. Why would fugitive slaves travel on "slave ships?"
European imperialism in the 19th century was motivated by the desire of acquiring raw materials for their industries. Other motives were for power and territory expansion. In the 19th century, power can be seen through how many colonies were under a European nation. since this also entails to greater economic and political power.
Most black soldiers were scattered throughout the Continental Army in integrated infantry regiments, where they were often assigned to support roles as wagoners, cooks, waiters or artisans. African Americans also served as gunners, sailors on privateers and in the Continental Navy during the Revolution.
African-Americans fought for both sides, providing manpower to both the British and the revolutionaries.