Jacob Henderson was an Irish clergyman and philologist who emigrated to the colonial Provinces of Pennsylvania, then Maryland, where he became a prominent land owner and church leader.
Very little is known about Henderson before 1710. On June 5, 1710, he was admitted to the Holy Orders by the Bishop of London, Henry Compton and appointed to the Mission at Dover then part of the Province of Pennsylvania and known as Dover Hundred.
In 1711, he traveled to New York and was apparently disturbed by what he observed in the churches there. In June 1712, he returned to England and described the state of the Church of England in New York and New Jersey as unacceptable, and implicating Governor Robert Hunter. While Hunter wrote a written rebuttal to this assessment, it served to raise Henderson's stature.
In December 1712, Henderson returned to the new world after being appointed to a Mission at Patuxent Hundreds (without a parish).
Mary Stanton was the third and final wife of Mareen Duvall who died in 1684 and she administered his substantial estate. Duvall had purchased sizeable tracts of land, including Catton, later known as Belair as well as owning Middle Plantation in Davidsonville, Maryland.
In 1696, she married Henry Ridgely. In 1700, Ridgely purchased an additional 100 acres (0.40 km2) adjacent to Catton called Enfield Chase Upon Ridgely's death in 1699, his third wife, now twice widowed, was executrix of the will and inherited the properties. Mary had previously inherited Middle Plantation in Davidsonville, Maryland when her first husband, Mareen Duvall died in 1699.