Contributed by Shaun Kirkpatrick Did you know that an amusement park once sat on an island in the middle of the Delaware River?  Or that a Bristol, Pa.-to-Burlington, N.J. ferry in the 1750s charged 6 pence for a pig to ride (the same as a human), unless the pig was dead…in which case it was … More Archives Month Philly: Free exhibit on Delaware River life in Bristol