Ferdinand Rudolph Hassler

Ferdinand Rudolph Hassler (October 7, 1770 – November 20, 1843) was a Swiss-born surveyor who worked mostly in the United States and also in Switzerland. He headed the United States Coast Survey and the Bureau of Weights and Measures.

Ferdinand Rudolph Hassler

Ferdinand Rudolph Hassler (October 7, 1770 – November 20, 1843) was a Swiss-born surveyor who worked mostly in the United States and also in Switzerland. He headed the United States Coast Survey and the Bureau of Weights and Measures.