Collection includes photographs documenting Bennion's life. Images include leadership of the Church of Jesus Christ of Latter-day Saints, military figures, and the railroad.

Speeches, meeting minutes, reports, correspondence, newspaper clippings, magazine articles, and miscellaneous items. The materials relate to Bennion's personal, educational, business, and religious activities. The largest amount of the materials relate to his speeches. The bulk of correspondence is between other apostles and general authorities of the Mormon Church.