John L. Sorenson discusses what the Book of Mormon says about the composition of Lehi's family.
John L. Sorenson, "The Composition of Lehi's Family," in Nephite Culture and Society: Collected Papers (Salt Lake City: New Sage Books, 1997), 1-24
A characteristic of Hugh Nibley’s study of the Book of Mormon, which he has urged others to emulate, is close study of the scriptural text to reveal information which myopia had previously led readers to ignore. In that spirit, this chapter reports my microanthropological examination of what the text reveals regarding the composition and demography of Lehi’s party from the beginning of their sojourn in the Arabian wilderness to their arrival in the promised land.