Samuel M. Kerns (18xx - 19xx) was one of three surveyors working for the U.S. Coast and Geodetic Survey who triangulated the position of Niihau relative to Kauai in 1903. He also completely surveyed Niihau by triangulation, the first such survey conducted and the only correct survey of the island up to that time. The previous survey of the island had been conducted thirty years prior. He also played a critical role in improving the street of Honolulu in the early 1900s.