Haunted Farmhouse in Ohio

This story is true, and happened to me. It's not necessarily scary, but is rather pretty neat.

When I was 5 years old, my parents left the city, and moved to an 80 acre farm in Ohio. The house was big. 13 rooms, 2 staircases, a wooden set in the kitchen that led up to my room, and another set of stairs in the front of the house. It was part of the Underground Railroad, and had a passageway in our basement that led to our neighbors basement (but it had been sealed off about 10 feet into the tunnel). There was a hatch on the roof accessible by the attic, that served as a lookout to guard against attacks, and there was a hiding space under the bottom step in the kitchen big enough for guns, money, food, etc. There was a bank barn, a pole barn, a chicken coop, and a milk house. It was heated only by a wood burning furnace in the dirt floor basement. We had well water. Essentially, it was like stepping back in time about 150 years. Not long after we moved in, I started talking about my friend, Livingston. My parents chalked it up to an imaginary friend. Cabinets began opening and closing, the toilet seat would randomly slam shut, there were footsteps in the attic that paced above my bed at night. But we never felt threatened. My dad had started researching previous owners of the farm, and found that a man named John Livingston owned the farm in the 1800's, died in the house, had his funeral our den, and was buried somewhere on the property. My parents divorced about a year after we moved there, and both eventually remarried. My stepsister was an infant when she moved in. As she grew up, she began talking about her imaginary friend. His name was Livingston.