The Milton M. Howell Charles Lindbergh Collection is comprised of textual materials that provide insight into the relationship between Dr. Howell and the Lindberghs as well as Charles Lindbergh's death. Most materials date between 1968 and 1974 and have been arranged chronologically.

The collection is largely focused on Lindbergh's death in August 1974 which is documented through a large amount of correspondence to Howell and obituaries, both loose and collected in a scrapbook. The majority of the condolence letters are from Howell's friends and peers sent after Lindbergh's passing. Of note is a August 30, 1974 letter from Anne Morrow Lindbergh to Howell that warmly thanks him for his long friendship with and excellent care of not only Charles, but Anne and their sons. Many of the letters include obituaries for Lindbergh from assorted newspapers around the country. Other printed ephemera related to Lindbergh's death include transcripts from an interview about the funeral procession, a typed rememberance, a funeral program, a rememberance service program, and a reprint of "Lone Eagle's Last Flight" by Howell.

A few additional items relate to the Lindberghs. Of note is a typed 1952 letter to Pan American World Airways executive Sam Pryor from Charles Lindbergh that declines an appearance invitation. It is signed "Charles." There is also a small amount of correspondence from Anne Morrow Lindbergh to Roselle Howell, including geeting cards and social letters, from 1971 to 1985.

Additionally, there are materials pertaining to the Charles A. Lindbergh Fund, which was created after Lindbergh's death to help support the the Palapala Ho'omau Church and cemetery where Lindbergh was buried. Materials include clippings and correspondence related to concerns about a park project and a financial report.

The collection also holds a small number of items that pertain directly to Howell. There is a photographic postcard of the Hana Medical Center that Howell helped build and where he served as Hana's only doctor for many years. There is also a clipping about his retirement and correspondence related to his assistance on articles about Lindbergh. A single color photograph (modern reprint) is also present. It depicts an unidentified man who may be Dr. Milton Howell.