G. R. (George Rockwell) Putnam

Born in Davenport, Iowa, in 1865, George Rockwell Putnam trained as an engineer at Rose Polytechnic Institute and went on to build a long career in federal scientific service. Early in his career he worked with the U.S. Coast and Geodetic Survey, taking part in demanding fieldwork that included Alaskan and boundary surveys, as well as expeditions connected with Greenland, the Pribilof Islands, and the Yukon Delta.

Putnam is especially remembered for his leadership in American lighthouse administration. Dartmouth identifies him as Commissioner of the U.S. Lighthouse Service from 1910 to 1935, following two decades as a surveyor with the Coast and Geodetic Survey. That mix of technical expertise and administrative experience helped make him an important figure in the history of navigation and maritime safety.

He also wrote about the sea in a clear, useful way for general readers and professionals alike. Project Gutenberg preserves his book Nautical Charts, which reflects the same practical knowledge that shaped his public career. Putnam died in 1953, leaving behind a body of work closely tied to the history of mapping, lighthouses, and safe passage at sea.