[1] In 1837, he converted to the faith of the Church of Jesus Christ of Latter-day Saints after reading the Book of Mormon in three days, but was persuaded to delay his baptism until the following spring that he might be more prepared for the ordinance.

[5] There he established his dental practice and developed a close friendship with Joseph Smith, Jr., whom he helped study German[6] and Hebrew.

[8] Neibaur's daughter Rebecca married industrialist and LDS Church leader Charles W. Nibley, thus Rosenbaum's brother-in-law, and early business partner.

Margaret Neibaur Miller's father-in-law, Eleazer, converted and baptized Brigham Young (who would become the second prophet and President of The LDS Church).

Neibaur is a great-grandfather of scholars Hugh, Reid, and Richard Nibley, as well as founder of a large and diverse family to be found throughout the Western United States.