C. F. Herreshoff was indeed the son of James Brown Herreshoff, the oldest brother of N. G. Herreshoff. This is the Californian branch of the family.
"Charles Frederick, born May 28, 1880, at Nice, France; spent his childhood at Bristol, where from 1883 to 1893 he attended the local public schools; like his older brother, he then went to Coronado, Cal., but did not remain to pursue his studies at the university there; on the contrary, he resumed to the East and studied the subject of designing at Bristol for a time and later went to Baltimore, where he was employed by the Maryland Steel Company; from there journeyed to Glasgow, Scotland, where he entered the famous university and took a special course in naval architecture; in the year 1902 he returned to America and lived for a time in New York City, but afterward took up his abode at Bridgeport, Conn.; he was engaged in designing motor boats and high speed gasoline engines, in which he displayed the characteristic skill of the family. While taking his university course in Glasgow, he designed a racing sloop which beat all her competitors; he attained the same success later at home with motor boats; his "Den" proved to be the fastest boat of that period in the world; later he carried his remarkable success into the automobile field, and while living in Detroit designed and manufactured a car named the "Herreshoff," which became well known in this country for speed and other good qualities. CharIes Frederick Herreshoff married April 9, 1902, Elizabeth Harrison McCormick, of New York City, where she was born Feb. 11, 1884; two children have been born of this union: Allan Stuart in New York City, Feb. 8, 1903, and Elizabeth, June 22, 1904; in 1908 a separation led to a divorce between him and his wile, and he remarried in 1912, Edna May Burt, of Detroit, and they now reside in Coronado, Cal." (Source: Bicknell, Thomas Williams, 1834-1925. The History of the State of Rhode Island and Providence Plantations. Volume 4. American Historical Society: New York, 1920.)
