Scope and Contents This series includes research, publications, and developement on many engineering topics including coal carbonization & coal, smelter descriptions, mining & engineering, conveyors, power plant engineering(photoelectrics, electricity by Kramer, oil from coal or shale, motors & control), substations: transmission & distribution, heat balance, tests & performances, boiler room equipment, mines & mining pamphlet, boiler tests, power, flow meters, hydrotic equipment, plant...

Scope and Contents This series includes papers regarding Otto Duke's involvement with the Church of Jesus Christ of Latter-day Saints, such as talks, projects, Park Stake SLC stake missionary work, 10th Ward papers, pamphlets, booklets, and church news and literature. Also includes some articles and pamphlets about the Reorganized Church of Jesus Christ of Latter-day Saints. The bulk of the material comes from 1930 to 1946 and some from 1920 to 1975.

Scope and Contents Includes diagrams and materials dealing with projects for the US Naval Supply Depot in Clearfield, UT, such as a dispensary project, marine barracks project, heating studies, correspondence, specifications, concrete tanks, "The Seagull" (three 1945 issues), and more. Dated 1942 to 1945.

Scope and Contents This series contains the personal materials of Otto Duke, including personal research and reading, political papers and diagrams, personal photos, sheets from a pocket notebook, invitations, business cards, name tags, travel information, newspapers (Utah, Alaska, Oklahoma), pamphlets, and miscellaneous other materials. They are dated from 1920 to 1975.