In Doctor Quinn: Medicine Woman, could you help me with the fates of some characters and their dillemas?

Anthony died. Horace and Myra divorced and she move away. Colleen went to college and the med school. Dorothy's cancer was removed. Her mother died of heart disease. Brian went to college. Myra's tumor was removed. There was 2 actresses who played Colleen. Sully became a surveyor which required him to travel a lot, during the last season, so you didn't see him much. He didn't fall off a cliff. Marjorie did die of Typhus. She and Loren were to be married.