Mariner Pennant Flag – 1950’s

Mariner History

Mariner Boat Company appears to have been a small, low-volume wooden inboard-powerboat builder active in the 1950s in the St. Clair River region—most consistently linked to Algonac or Marine City, Michigan. Classic-boat references such as Fiberglassics list Mariner as a wooden-boat manufacturer and provide a few 1958–1959 ads for inboard models but note that its company history is largely undocumented. The boats referenced from this period are typically mahogany-planked utility runabouts, usually in the 18–20 ft range, with inboard engines.

Other independent evidence strengthens the Algonac/Macomb County connection. Macomb County Board proceedings (mid-1950s) show payments to “Mariner Boat Company of Algonac,” confirming the company operated locally. Auction listings (Proxibid, Hemmings) frequently describe surviving Mariner hulls from 1957–1959 and characterize Mariner as “little-known” but producing high-quality mahogany utilities, consistent with a boutique builder rather than a mass manufacturer. There are some restoration videos and posts (YouTube, Facebook) show surviving boats and provide construction details.

No corporate filings, founder names, or complete production records have been located, and Mariner does not appear in the public U.S. Coast Guard MIC database. The company’s exact founding, output, and closure date remain unknown.