Skip to main content

Lloyd Logan papers

Identifier: MS-0487

  • Staff Only
  • No requestable containers

Scope and Contents

The collection consists of material relating to Lloyd Logan's days as a student at Johns Hopkins, his service in World War I, and his research and patents.


  • Creation: 1917 - 1939


Conditions Governing Access

This collection is housed off-site and requires 48-hours' notice for retrieval. Please contact Special Collections for more information.

Collection is open for use.

Conditions Governing Use

Single copies may be made for research purposes. Researchers are responsible for determining any copyright questions. It is not necessary to seek our permission as the owner of the physical work to publish or otherwise use public domain materials that we have made available for use, unless Johns Hopkins University holds the copyright.

Biographical Note

Lloyd Logan was born in Nova Scotia in 1890. As a boy, he moved with his parents to Brockton, Massachusetts. He received his Ph.D in engineering from Johns Hopkins, and taught at the university from 1927 to 1937. In 1937, he left Hopkins for Syracuse University where he served as head of the chemical engineering department.

Logan was the inventor of various chemical control devices and improvements in gas purification, and the author of articles on the control of industrial processes by light-sensitive means. He also wrote and researched in the areas of gas purification, water-gas production, and gas flow formulae.

From 1908 to 1916 he held various technical positions with companies including General Electric, Balke and Knowles Steam Pump Works, Fore River Shipbuilding Company, Stone and Webster, and the Lake Torpedo Boat Company.

Logan also served in France and Belgium during the first world war with the Third Engineering Division of the Canadian Expeditionary Forces. He later studied at the Royal College at Glasgow on a British university scholarship.

After the first world war, Logan worked as a field engineer in several locations (including New Jersy, Minnesota, and Pittsburgh, Pennsylvania) for the Koppers Company. While in Pittsburgh, he had professional contact with JHU professor, Wilbert J. Huff, who later brought Logan to Hopkins as part of the Gas Engineering Department.

Lloyd Logan died on December 29, 1938 at the age of 47 after an illness of several months.


1.42 Cubic Feet (1 record center carton, 1 pamphlet box (7.25 x 4 x 10 inches))

Language of Materials



Lloyd Logan was a chimst and Johns Hopkins professor born in Nova Scotia in 1890. The collection consists of material relating to Lloyd Logan's days as a student at Johns Hopkins, his service in World War I, and his research and patents spanning 1918-1939.


The collection was donated by Hugh Logan in 2006. The original letters, obituaries, and military discharge certificate in Box 3 were donated by Ann Millang, daughter of Lloyd Logan, in October 2023.

Processing Information

Finding aid prepared by Margaret Burri in 2007. Kristen Diehl added Box 3 to the collection in May 2024.

Lloyd Logan papers
Language of description
Script of description
Language of description note
Finding aid written in English

Repository Details

Part of the Special Collections Repository

The Sheridan Libraries
Special Collections
3400 N Charles St
Baltimore MD 21218 USA