Thickens, Dudley.

Dudley Wold Thickens (1913-1993) was a life-long resident of the San Ramon Valley and avid photographer of railroads and vessels in the San Francisco Bay area. His vessel photographs are an important documentary record of the activities in the San Francisco Bay, much like the ship traffic records kept by the Marine Exchange of the San Francisco Bay Region.

From the description of Dudley Thickens photographs, 1916-1977 (1940-1965). (San Francisco Maritime National Historical Park Library). WorldCat record id: 756920774