Ludlow was raised in southern Utah County and attended public schools in such communities as Benjamin, Utah, Goshen, Utah and Spanish Fork. He studied at Utah State University where he served for two years as student body president. He then went on to receive an M.A. in education from Indiana University and a Ph.D. from Columbia University.
In 1947, Ludlow published Latter-day Prophets Speak, a compilation of the teachings of various leaders of The Church of Jesus Christ of Latter-day Saints (LDS Church). Ludlow joined BYU’s faculty in 1955. He served for a time as the dean of Religious Education at BYU. In 1968, Ludlow headed the group of BYU students who were the first to go to the Holy Land under BYU auspices.
By 1972, Ludlow had left BYU and had become the director of teacher support services for the Church Educational System of the LDS Church. Ludlow was also one of the leading specialists in assisting Thomas S. Monson, Boyd K. Packer and Bruce R. McConkie in preparing the LDS Church editions of the Standard Works that were released from 1979 to 1981. During part of the 1980s, he served as director of Correlation Review for the LDS Church.] Ludlow also served as a Sunday School teacher, as a branch president, as a member of a bishopric, in high councils and stake presidencies, as a regional representative of the Twelve, as president of Australia Perth Mission, and as a temple worker.
Ludlow and his wife Luene had one son, Victor L. Ludlow, and eight daughters.
On February 14, 2009 Ludlow died of causes incident to age.
Above is the information from WIkipedia: https://en.wikipedia.org/wiki/Daniel_H._Ludlow
Below is from his obituary on Legacy.com: https://www.legacy.com/obituaries/deseretnews/obituary.aspx?n=daniel-h-ludlow&pid=124283722
Daniel H. Ludlow 1924 ~ 2009 Daniel H. Ludlow, 84, died February 14, 2009 in Provo of causes incident to age. He died peacefully at home surrounded by his wife and all of his children.Born March 17, 1924, to Daniel and Wilma Hansen Ludlow in Benjamin, Utah. Married Luene Leifson on June 10, 1942, in the Salt Lake Temple. Survived by wife; one son, and seven daughters: Victor (V-Ann) Ludlow, Sandra Ludlow, Diane (Doyle) Asay, LuAnn Rothe, Carolyn (Brent) Sweeny, Kathy (Mark) Smith, Shauna (Darrell) Smith, Michelle (Garr) Judd; as well as forty-two grandchildren and sixty-four great-grandchildren. Preceded in death by both parents; a daughter, Ruth (Nate) Pierce; a son-in-law, Ed Rothe; and a sister, Margaret. Survived also by brothers and sisters from his mother’s later marriage after his father’s death to D. Raymond LeBaron: Anna Rae (Gilbert) Nelson; Dollene (Ben) Nason; Garn Q. (Barbara) LeBaron (half-brother); and Nona (Joe Lynn) Spencer (half-sister). Preceded in death by stepbrother Charles D. (Shirley) LeBaron. He also considered his wife’s family as his own. Attended schools in Benjamin, Goshen, and Spanish Fork. Attended college at Utah State, where he was elected student-body president twice (1942-46); Indiana University (Masters); and Columbia University (Doctorate). Taught at Utah State (1947-1952) and Brigham Young University (1955-1972), where he served as Dean of Religious Instruction and Director of Institute of Mormon Studies. Received an honorary doctorate degree from BYU in 1995. Served as Director of Correlation Department of the LDS Church for 15 years. Also taught at BYU-Hawaii campus, served as Director of Teacher Support Services for the Church Education System, served on the Scriptures Publication Committee of the LDS Church and served as Editor-in-chief of the “Encyclopedia of Mormonism” published by Macmillan Publishers. Founded and served as the first Director of the BYU Semester Abroad in Israel, and the Faculty Study Tour of the Lands of the Scriptures. Has directed many tours to Israel (often including nearby countries), Central America, Mexico and conducted numerous Church History tours. Served in many leadership positions, including Branch President; member of: a bishopric, four high councils, and two stake presidencies; Regional Representative of the Twelve; President of Australia Perth Mission; and an ordained temple worker. Author of several books (including a series of scripture references), numerous magazine articles, and chapters in Church manuals. Enjoyed sports, gardening, playing games with the family, golfing, fishing, camping, genealogy, and traveling. Had a great love of learning and teaching.