Based on the clue 'a river on the nicaragua honduras border or ms cha...', what is the answer?

Based on the clue 'a river canal or other route for transport or trav...', what is the answer? What is associated with: a river in this state is named for the rappahannock tribe that john smith met in 1607? What is associated with: a river is named for this man born in scotland in 1764 the first european known to have crosse… Based on the clue 'a river linking the great lakes the atlantic ocea...', what is the answer? Based on the clue 'a river steamer equipped with a theater an acting...', what is the answer? Based on the clue 'a river that empties into the adriatic or an autho...', what is the answer? Based on the clue 'a riverboat captain bogart a missionary hepburn u...', what is the answer? Based on the clue 'a road scholar is retired on this coasting until a...', what is the answer?