Cemetery Hill Rd. and South Lincoln Ave.
Map / Directions to the Mansfield-Woodhouse Cemetery
Mansfield-Woodhouse Cemetery contains the graves of several Revolutionary War soldiers, including: 
Captain John Axford
December 22, 1761 - January 14, 1843
Died October 11, 1822, age 74
April 2, 1744 - January 8, 1827
September 6, 1729 - June 13, 1810
Local Revolutionary War era doctor Margaret "Peggy" Warne is also buried here. According to A Medical History of the County of Warren, published in 1890, Warne "was perhaps the most skillful, successful and widely known of any obstetrician in Warren County, in her day. She flourished very extensively about the time of the American Revolution, and held on very tenaciously to her particular branch of practice for many years after." 
A blue sign outside the cemetery on Cemetery Hill Road states that a Revolutionary War artillery site was located here, but there is no known documentation for this.
Information drawn from gravestone and markers in the cemetery.
2. ^ Historical Committee of the Warren County District Medical Society, A Medical History of the County of Warren 1765-1890 (Newark: L. J. Hardham, 1890) Pages 12-13
This book is available to be read as a PDF on the Rutgers University Libraries website here