james henry lane , moved to lawrence, kansas in 1855. despite being a democrat he became affiliated with the free-staters. he soon became one of the leaders of the jayhawkers. later a union general and u.s. senator, he led the 3rd and 4th kansas volunteer infantry and 5th kansas cavalry on raids into missouri. they burned most of the town of osceola, missouri, stole everything they could and freed the slaves in the town.