Liberty Hall Museum & Arboretum is situated on the campus of Kean University in Union, NJ. The museum encompasses 12 acres within an urban setting and includes formal and informal gardens with plantings dating back to the 18th century. The property includes Liberty Hall, built in 1772 for William Livingston, New Jersey’s first elected governor and home to his descendants, the Kean family, one of New Jersey’s most prominent political families. The grounds include several of the oldest trees in New Jersey including a horse chestnut planted in 1771 by Livingston’s daughter. Historic designs for the grounds have been carefully preserved and maintained so that visitors to the grounds can trace the course of landscape design from the 18th century through the 21st century.