(November 15, 1792 – May 22, 1872) was a leader in the early days of the Latter Day Saint movement and was a member of the First Presidency in the Reorganized Church of Jesus Christ of Latter Day Saints. Marks is mentioned in the Doctrine and Covenants in sections 117. and 124. of The Church of Jesus Christ of Latter-day Saints (LDS Church) edition and in section 115 of the Community of Christ edition.
Marks was born in Rutland, Vermont to Cornwall (or Cornell) Marks and Sarah Goodrich. He married Rosannah Robinson on May 2, 1813 and was the father of five children.
When the Saints arrived in Commerce, Illinois in 1839, Marks was appointed as Stake President of Commerce (later Stake President of the Nauvoo Stake of Zion). He served in that position until 1844.
He was also elected as a Nauvoo municipal alderman and as one of the regents of the University of the City of Nauvoo in February 1841, and was a founder of the Nauvoo Agricultural and Manufacturing Association. He was appointed by revelation (D&C 124) to contribute to and be on the Nauvoo House committee, and served as landlord of the Mansion House
As Stake President, he assisted in the laying of the cornerstones of the Nauvoo Temple in April, 1841, was initiated into Masonry in April 1842 and received his endowment on May 4, 1842 as a member of the Council of Fifty.