Southwestern Shipbuilding was organized in 1918 to build cargo ships for the U.S. Shipping Board. Following the war effort, it was leased to Bethlehem Steel in 1921 as a repair yard and then sold in 1925. It was reactivated as a shipbuilder for WWII. Wartime employment peaked at about 6,000. After the war it reverted to ship repair and was sold to Southwest Marine in 1981: see it from the air on Google here. There is some history at the web site of the Port of Los Angeles - here. If anyone can provide any more information about this shipyard's early days, please e-mail it to me at tim@coltoncompany.com
| Hull # | Name | Owner | Type | Type | Pennant # | Tons | Delivery | Disposition |
| 1 | West Carnifax | US Shipping Board | Cargo Ship | 8,600 | Jan-19 | Later Exford 1928, Pan Royal 1930, in collision and lost 1943 | ||
| 2 | West Caruth | US Shipping Board | Cargo Ship | 8,600 | Feb-19 | Later Exmoor 1923, Antonio Tripcovich 1924, Seisho Maru 1928, torpedoed and lost 1944 | ||
| 3 | West Catance | US Shipping Board | Cargo Ship | 8,600 | Mar-19 | Later Atlantic 1923, Theodore 1947, Archon 1951, scrapped 1952 | ||
| 4 | West Sequana | US Shipping Board | Cargo Ship | 8,600 | Apr-19 | Later Golden Cloud 1928, Waimea 1938, Marcar 1950, Carmar 1952, Triaina 1954, Madelaine 1955, scrapped 1958 | ||
| 5 | West Cavanal | US Shipping Board | Cargo Ship | 8,600 | Jun-19 | Later Edgar Bowling 1923, Texmar 1927, Irkutsk 1945, scrapped 1966 | ||
| 6 | West Cawthon | US Shipping Board | Cargo Ship | 8,600 | Jul-19 | Later Empire Bison 1940, torpedoed and lost 1940 | ||
| 7 | West Cayote | US Shipping Board | Cargo Ship | 8,600 | Aug-19 | Later Washington 1928, bombed and lost 1942 | ||
| 8 | West Chetac | US Shipping Board | Cargo Ship | 8,600 | Jul-19 | Torpedoed and lost 1942 | ||
| 9 | West Inskip | US Shipping Board | Cargo Ship | 8,600 | Sep-19 | Later Charcas 1926, Carreta 1940, Parita Sun 1947, scrapped 1953 | ||
| 10 | West Chicopee/West Bakersfield/Bakersfield | US Shipping Board | Cargo Ship | 8,600 | Dec-19 | Later Chagres 1941, Mirafjord 1947, San Salvatore 1950, scrapped 1953 | ||
| 11 | West Neris | US Shipping Board | Cargo Ship | 8,600 | Dec-19 | Later Irish Oak 1941, torpedoed and lost 1943 | ||
| 12 | West Niger | US Shipping Board | Cargo Ship | 8,600 | Jan-20 | Later Nevada 1938, wrecked 1932 | ||
| 13 | West Nilus | US Shipping Board | Cargo Ship | 8,600 | Mar-20 | Sunk as breakwater at Normandy 1944 | ||
| 14 | West Niveria | US Shipping Board | Cargo Ship | 8,600 | Apr-20 | Later Golden Coast 1928, Delawarean 1937, Empire Hawksbill 1940, torpedoed and lost 1942 | ||
| 15 | West Nomentum | US Shipping Board | Cargo Ship | 8,600 | May-20 | Later Pennsylvania 1928, Pan 1947, Tanar 1949, in collision and sank 1959 | ||
| 16 | West Norranus | US Shipping Board | Cargo Ship | 8,600 | Jun-20 | Later Pacific Pine 1926, Maine 1937, Lvov 1945, Istra 1951, scrapped 1958 | ||
| 17 | West Notus | US Shipping Board | Cargo Ship | 8,600 | Jul-20 | Shelled and scuttled 1942 | ||
| 18 | West Numidia/Hollywood | US Shipping Board | Cargo Ship | 8,600 | Aug-20 | Wrecked and lost 1945 | ||
| 19 | Mary Luckenbach | US Shipping Board | Cargo Ship | 8,600 | Dec-20 | Later C. B. Watson 1936, Indiana 1947, Al Horreya 1954, Mansoura 1957, scrapped 1963 | ||
| 21 | Montebello | Union Oil of Cal. | Tanker | 12,300 | 1921 | Torpedoed and lost 1941 | ||
| 22 | La Placentia | Union Oil of Cal. | Tanker | 12,300 | 1921 | |||
| 23 | La Purisima | Union Oil of Cal. | Tanker | 12,300 | 1921 | To Russia 1942 as Taganrog, returned 1944 | ||
| 24 | Scopas | Tanker | 1921 | |||||
| 25 | Silvanus | Tanker | 9,000 | 1921 | Later Papoose, torpedoed and lost 1942 | |||
| 26 | Semiramis | Tanker | 1921 | |||||
| Kendrick | US Navy | Destroyer | DD | 612 | 9/12/42 | Sunk as target 1968 | ||
| Laub | US Navy | Destroyer | DD | 613 | 10/24/42 | Scrapped 1975 | ||
| MacKenzie | US Navy | Destroyer | DD | 614 | 11/21/42 | Sunk as target 1974 | ||
| McLanahan | US Navy | Destroyer | DD | 615 | 12/19/42 | Scrapped 1974 | ||
| Boyd | US Navy | Destroyer | DD | 544 | 5/8/43 | To Turkey as Iskenderun (D 343) 1969, struck 1981 | ||
| Bradford | US Navy | Destroyer | DD | 545 | 6/12/43 | To Greece as Thyella (D 28) 1962, struck 1981 | ||
| Brown | US Navy |