It looks like Mark Stratton was born in 1812-1889, he is a decendent of Thomas Stratton born in New Jersey 1760 and died in Beaver County, PA 1846. Thomas Stratton was brought up a Quaker serving in Rev War for two years records indicate he enlisted in Continental Army in an Orange County, New Jersey Regiment under Capt John Sanford in Col William Malcoms Regiment April 1, 1777. Dose this sound like your ancestors. This Mark Stratton could have been named after Mark Stratton the first.
Fold3 has free access to Revolutionary War records until July 15th. A search for "Stratton" in Revolutionary War records related to New Jersey comes up with results for a Lot Stratton, James Stratton (Holme's Battalion, Militia), Anias Stratton (Cumming's Battalion), Annanias Stratton (Second Regiment), and Annanias Stratton (Cumming's Battalion). There may be more that I'm missing. Fold3 and Ancestry can also be accessed for free year round at any National Archives location (https://www.archives.gov/locations)and at some libraries. You can also order Revolutionary Service Records directly from the National Archives. https://www.archives.gov/veterans/military-service-records/pre-ww-1-records
All of the military service records in federal custody from this time period are at the National Archives in Washington DC. Their contact information is here if you want to speak to them directly: https://www.archives.gov/dc
You should also contact the New Jersey State Archives to see if they have any militia records. https://www.nj.gov/state/archives/index.html