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Physical description
Approximately 1.8 GB of digital materials: primarily photographs and text.
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Custodial history
Digital donation by Sam Coghlan in May 2026.
Scope and content
Records relating to Daniel John "Jack" Coghlan (1934-2018), early professional diver born in Fort William. He began his career in the Thunder Bay region and later worked around the world, living in California, Australia, Alaska, and Hawaii.
The collection consists of digital copies of photographs, news articles, and documents, as well as written stories contributed by family and friends. Articles relate to Coghlan's career as a salvage diver (Superior Diving & Salvaging Co.) including attempts to salvage the Gunilda and other shipwrecks. Through this era, he was frequently referred to as a "frog man" in news articles. In later years he worked supporting offshore oil development.
The collection was assembled by Sam Coghlan, Jack's brother.
Notes area
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Language of material
English
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Restrictions on access
Some documents relate to health issues, financial issues, and the disposition of Jack's estate.
Terms governing use, reproduction, and publication
Material is stored digitally in Permafrost as JackCoghlan_2026
Access to files can be granted on direct request.
Finding aids
Associated materials
Related collections at Lakehead include the Daniel H. Coghlan fonds (Jack's father) and the Arthur Ellsworth Swaim fonds (Jack's maternal grandfather.) An oral history recorded by Marion Coghlan, Jack's mother, is also available.