Life Spans of Lehi's Lineage Welch, John W., and Greg Welch. Life Spans of Lehi's Lineage. Provo, UT: Foundation for Ancient Research and Mormon Studies, 1999.
Longevity of Book of Mormon People and the "Age of Man" Welch, John W.. "Longevity of Book of Mormon People and the "Age of Man"." The Journal of Collegium Aesculapium 3 (1985): 34-45.
Life Spans of Alma's Lineage Welch, John W., and Greg Welch. Life Spans of Alma's Lineage. Provo, UT: Foundation for Ancient Research and Mormon Studies, 1999.
Life Spans of Mosiah's Lineage Welch, John W., and Greg Welch. Life Spans of Mosiah's Lineage. Provo, UT: Foundation for Ancient Research and Mormon Studies, 1999.
Why did Adam and his descendants live so long? Valletta, Thomas R.. "Why did Adam and his descendants live so long?" Ensign 24, no. 2 (1994): 61-62.
