John S. Marcy

John Stiles Marcy (March 23, 1830 – May 3, 1885) was an American businessman, farmer, and politician from Riverhead, New York.

Life Marcy was born on March 23, 1830 in Willimantic, Connecticut, the son of Zebediah and Abigail Marcy.

Marcy grew up on a farm and received a common school education. When he reached his majority he engaged in several successful business ventures. In 1862, he entered the insurance business. In 1871, he bought a farm in Riverhead and moved there. Originally a Democrat, he became a Republican following the Battle of Fort Sumter. and 1873. He later invested in the menhaden fishery business and preparing fertilizers from scrap.

An active member of the Methodist Church, he was a leading spirit in establishing a camp meeting ground in Jamesport. He served as president and treasurer of the Suffolk County Agricultural Society. He was buried in the Riverhead Cemetery.