He was a son of
Thomas Tingey Craven, a
United States Navy officer. He studied in
St. John's College,
Annapolis, Maryland, and later in the scientific department of
Hobart College, but did not graduate, since he entered the
United States Army shortly before the close of the
Civil War. He later received an honorary degree of B.S. from Hobart in 1878. He obtained employment on the
Croton works in
New York City, but in 1866 went to California and became secretary, with the rank of lieutenant, to his father, then commanding the
North Pacific Squadron, and in 1869 was appointed assistant civil engineer of the navy yard at
Mare Island. This office he resigned in 1872, and then practiced his profession in
San Francisco until 1879. He was commissioned civil engineer in the U. S. Navy during the latter year, and ordered to
Chester, Pennsylvania, where he was occupied with the construction of the iron floating dock then building for the
Pensacola Navy Yard. Later he was ordered to the navy yard at
League Island, Pennsylvania, and in July 1881, was sent to the navy yard at
Portsmouth, New Hampshire, and in September 1882, assigned to special duty at Coaster's Harbor Training Station. He was granted leave of absence in 1883, and took charge of the construction of the
new Croton aqueduct in New York, up to March 1886. He invented an automatic trip for mining buckets (1876), and a tunneling machine (1883). He was a member of the
American Society of Civil Engineers. ==References==