Marvin Jeremy Ashton was a member of the Quorum of the Twelve Apostles of The Church of Jesus Christ of Latter-day Saints from 1971 until his death.
Ashton was born in Salt Lake City, Utah. He was the son of Marvin O. Ashton, a prominent local leader of the LDS, who later became a general authority of the church. The younger Ashton worked in the lumber business as a youth. He graduated from the University of Utah. He served a mission in Great Britain, where his mission president was Hugh B. Brown. He worked as managing director of LDS Social Services.
Ashton served for a time as a member of the Utah State Senate. He was also president of Deseret Book Company and involved in other business ventures including a lumber company.
From 1958 to 1969, Ashton was an assistant to the general superintendent of the church's Young Men's Mutual Improvement Association. He served as assistants to superintendents Joseph T. Bentley and G. Carlos Smith.
Ashton was ordained an Apostle on December 2, 1971 after the death of Richard L. Evans. Ashton was an Assistant to the Quorum of the Twelve Apostles between 1969 and his call to the Quorum of the Twelve.