Series contains materials on Lowell Thomas, Frances Ryan Thomas, Harry G. Thomas, Harriet Wagner Thomas, Pherbia Thomas Thornburg, Lowell Thomas, Jr., (Mary) Eunice Ryan, Harry P. Ryan, Norman Ryan, and other family members

Series contains subject files, trip files, and scripts and script notes.

Series contains clippings written by Lowell Thomas, clippings about Lowell Thomas, and other clippings