 What you have in the 19th century was very strict marriage culture. Get married, and then everything is possible. Captain David Derrickson became friends with Lincoln while they were living here at the cottage. There is a soldier here devoted to the president, and when Mrs. L is not home, sleeps with him. What stuff? He was seen wearing the president's nightshirt. If you want a smoking gun, here it is. But then you see all these shifts to the end of the 19th century.