Western Pipe & Steel was created in Los Angeles in 1906, by T. A. Hays and James A. Talbot. They acquired the Shaw-Batcher shipyard in San Francisco in 1917 and built cargo ships for the U.S. Shipping Board in World War I. It was one of the few WWI emergency yards not to close after the war, building barges and dredges and fabricating pipe between the wars, and becoming one of the pioneers of automatic welding machinery. The yard, which is said to have been known locally as "Western Swipe and Steal", was in South San Francisco and had four berths from which ships were launched sideways, two on each side of a large basin. The site is now a residential complex: see it from the air on Google here. For WWII, the company started a second yard in San Pedro, which was in the north-west corner of the West Basin, where Berths 125 to 132 are now: see the site from the air on Google here. Both yards closed at the end of the war and were sold to Consolidated Steel, which became Consolidated Western Steel, a division of U.S. Steel. The two yards used a single sequence of hull numbers: in the table below, the ships built in San Pedro have a suffix P in their hull numbers. If anyone can add to the table below, please e-mail tim@coltoncompany.com.
| Hull # | Original Name | Owner | MC Design | MC Hull # | Tons | Delivered | Disposition |
| 1 | Isanti | US Shipping Board | Cargo Ship | 8,600 | Sep-18 | Scrapped 1930 | |
| 2 | Nantahala | US Shipping Board | Cargo Ship | 8,600 | Oct-18 | Scrapped 1929 | |
| 3 | West Avenal | US Shipping Board | Cargo Ship | 8,600 | Feb-19 | Scrapped 1929 | |
| 4 | Oskaloosa | US Shipping Board | Cargo Ship | 8,600 | Dec-18 | Scrapped 1929 | |
| 5 | West Vaca | US Shipping Board | Cargo Ship | 8,600 | Mar-19 | Scrapped 1929 | |
| 6 | West Ashawa | US Shipping Board | Cargo Ship | 8,600 | May-19 | Scrapped 1929 | |
| 7 | West Alcoz | US Shipping Board | Cargo Ship | 8,600 | Jun-19 | Scrapped 1929 | |
| 8 | West Aleta | US Shipping Board | Cargo Ship | 8,600 | Jul-19 | Wrecked 1920 | |
| 9 | West Cactus | US Shipping Board | Cargo Ship | 8,600 | Aug-19 | Scrapped 1947 | |
| 10 | West Caddoa | US Shipping Board | Cargo Ship | 8,600 | Sep-19 | Later Empire Guillemot 1941, torpedoed from the air and lost 1941 | |
| 11 | West Kader | US Shipping Board | Cargo Ship | 8,600 | Dec-19 | Later New York 1928, Pan Kraft 1937, bombed and lost 1942 | |
| 12 | West Cadron | US Shipping Board | Cargo Ship | 8,600 | Mar-20 | Later Iowa 1928, wrecked 1936 | |
| 13 | West Cahokia | US Shipping Board | Cargo Ship | 8,600 | Apr-20 | Later Pacific Fir 1926, Jacob Ruppert 1938, Cocle 1941, torpedoed and lost 1942 | |
| 14 | West Calera | US Shipping Board | Cargo Ship | 8,600 | Apr-20 | Later Golden Harvest 1928, Oklahoman 1937, wrecked 1942 | |
| 15 | West Camak | US Shipping Board | Cargo Ship | 8,600 | Jun-20 | Later Antonio Locatelli 1938, sunk by gunfire 1940 | |
| 16 | West Camargo | US Shipping Board | Cargo Ship | 8,600 | Jul-20 | Later Desna 1943, scrapped 1973 | |
| 17 | West Canon | US Shipping Board | Cargo Ship | 8,600 | Sep-20 | Later Pacific Spruce 1926, William L. Thompson 1939, Transocean 1947, Hai Fei 1948, scrapped 1960 | |
| 18 | West Carmona | US Shipping Board | Cargo Ship | 8,600 | Oct-20 | Later Golden State 1928, Lahaina 1937, sunk by gunfire 1941 | |
| 19-56 | Numbers not used ? | ||||||
| 57 | American Manufacturer | US Maritime Comm. | C1-B | 94 | 11-Apr-41 | Sold 1948 as Hoegh Merchant, later Mathilda, President Osmena and Seven Generals, scrapped 1973 | |
| 58 | American Leader | US Maritime Comm. | C1-B | 95 | 12-Jun-41 | Sunk by gunfire near St. Helena 1942 | |
| 59 | American Builder | US Maritime Comm. | C1-B | 96 | 25-Jul-41 | To NDRF 1952 as Cape Decision, scrapped 1968 | |
| 60 | American Press | US Maritime Comm. | C1-B | 97 | 3-Sep-41 | To NDRF 1952 as Cape Lookout, scrapped 1970 | |
| 61 | American Packer | US Maritime Comm. | C1-B | 98 | 14-Oct-41 | Scrapped 1971 | |
| 62 | Steel Artisan | US Maritime Comm. | C3-S-A2 | 171 | 30-Sep-42 | To USN as Barnes (CVE 7), to Britain 1942 as HMS Attacker (D 02), sold 1950 as passenger ship Castel Forte, later Fairsky and Philippine Tourist, scrapped 1980 | |
| 63 | Cascade | US Maritime Comm. | C3-S-A2 | 172 | 11-Sep-42 | To USN as Cascade (AD 16), scrapped 1975 | |
| 64 | Chandeleur | US Maritime Comm. | C3-S-A2 | 173 | 19-Nov-42 | To USN as Chandeleur (AV 10), scrapped 1971 | |
| 65 | Hamlin | US Maritime Comm. | C3-S-A2 | 174 | 21-Dec-42 | To USN as Hamlin (CVE 15), to Britain 1942 as HMS Stalker (D 91), sold 1947 as Riouw, later Lobito, scrapped 1975 | |
| 66-76 | 11 barges | ||||||
| 77 | Croatan | US Maritime Comm. | C3-S-A2 | 197 | 27-Feb-43 | To USN as Croatan (CVE 14), to Britain 1942 as HMS Fencer (D 64), sold 1950 as passenger ship Sydney, later Roma, Galaxy Queen, Lady Dina and Caribia 2, scrapped 1975 | |
| 78 | Prince William | US Maritime Comm. | C3-S-A2 | 198 | 18-May-43 | To USN as Prince William (CVE 19), to Britain 1942 as HMS Striker (D 12), scrapped 1946 | |
| 79 | Sea Pike | US Maritime Comm. | C3-S-A2 | 267 | 13-Feb-43 | Sold 1946 as Mormacwave, later lone Star State, scrapped 1970 | |
| 80 | Sea Bass | US Maritime Comm. | C3-S-A2 | 268 | 31-Mar-43 | Sold 1946 as William Luckenbach, later P & T Forester, then American Robin, scrapped 1973 | |
| 81 | Sea Angel | US Maritime Comm. | C3-S-A2 | 269 | 15-Mar-43 | To USN as Bolivar (AP 79/APA 34), sold 1948 as President Van Buren, later President Harding, Thailand Bear and Santa Monica, scrapped 1972 | |
| 82 | Sea Mink | US Maritime Comm. | C3-S-A2 | 270 | 24-Apr-43 | To USN as Callaway (AP 80/APA 35), sold 1948 as President Harrison, later Hurricane, scrapped 1974 | |
| 83 | Sea Swallow | US Maritime Comm. | C3-S-A2 | 271 | 4-May-43 | To USN as Cambria (AP 81/APA 36/LPA 36), scrapped 1972 | |
| 84 | Sea Snipe | US Maritime Comm. | C3-S-A2 | 272 | 29-May-43 | Sold 1947 as Edward Luckenbach, later Aloha State, scrapped 1971 | |
| 85 | Sea Needle | US Maritime Comm. | C3-S-A2 | 273 | 29-May-43 | To USN as Chilton (AP 83/APA 38/LPA 38), scrapped 1974 | |
| 86 | Sea Carp | US Maritime Comm. | C3-S-A2 | 274 | 29-Jun-43 | To USN as Clay (AP 84/APA 39), sold 1948 as President Johnson, later La Salle, scrapped 1974 | |
| 87 | Sea Bass | US Maritime Comm. | C3-S-A2 | 275 | 30-Jun-43 | To USN as Bayfield (AP 78/APA 33), scrapped 1969 | |
| 88 | Sea ______ | US Maritime Comm. | C3-S-A2 | 276 | 19-Jul-43 | To USN as Cavalier (AP 82/APA 37), scrapped 1969 | |
| 89 | Sea Barb | US Maritime Comm. | C3-S-A2 | 277 | 6-Aug-43 | Sold 1949 as F. J. Luckenbach, later P & T Seafarer, then American Hawk, scrapped 1971 | |
| 90 | Sea Cat | US Maritime Comm. | C3-S-A2 | 278 | 25-Aug-43 | Sold 1949 as Lena Luckenbach, later Overseas Lena, then Overseas Eva, scrapped 1971 | |
| 91 | Sea Devil | US Maritime Comm. | C3-S-A2 | 279 | 30-Nov-43 | Sold 1949 as Harry Luckenbach, later Copper State, scrapped 1973 | |
| 92 | Sea Flasher | US Maritime Comm. | C3-S-A2 | 280 | 24-Dec-43 | Sold 1949 as Steel Age, scrapped 1971 | |
| 93 | Sea Arrow | US Maritime Comm. | C3-S-A2 | 281 | 30-Sep-43 | To USN as Alpine (APA 92), sold 1948 as India Mail, later Transwestern, then Buckeye Pacific, scrapped 1971 | |
| 94 | Sea Snapper | US Maritime Comm. | C3-S-A2 | 282 | 30-Oct-43 | To USN as Barnstaple (APA 93), sold 1948 as Steel Fabricator, later Reliance Dynasty, then Grand Valor, scrapped 1974 | |
| 95 | Sea Corporal | US Maritime Comm. | C3-S-A2 | 283 | 31-Jan-44 | Sold 1949 as Steel Surveyor, scrapped 1971 | |
| 96P | Bangust | DE | 739 | 30-Oct-43 | To Peru as Castilla (D 1) 1952, struck 1979 | ||
| 97P | Waterman | DE | 740 | 30-Nov-43 | To Peru as Aguirre (D 2) 1952, sunk 1974 | ||
| 98P | Weaver | DE | 741 | 31-Dec-43 | To Peru as Rodriguez (D 3) 1952, struck 1979 | ||
| 99P | Hilbert | DE | 742 | 4-Feb-44 | Scrapped 1973 | ||
| 100P | Lamons | DE | 743 | 29-Feb-44 | Scrapped 1973 | ||
| 101P | Kyne | DE | 744 | 4-Apr-44 | Scrapped 1973 | ||
| 102P | Snyder | DE | 745 | 5-May-44 | Scrapped 1973 | ||
| 103P | Hemminger | DE | 746 | 30-May-44 | To Thailand as Pin Klao (F 3) 1959, active | ||
| 104P | Bright | DE | 747 | 30-Jun-44 | To France as Touareg (F 721) 1950, struck 1958 | ||
| 105P | Tills | DE | 748 | 8-Aug-44 | Sunk as target 1969 | ||
| 106P | Roberts | DE | 749 | 2-Sep-44 | Sunk as target 1971 | ||
| 107P | McClelland | DE | 750 | 19-Sep-44 | Scrapped 1973 | ||
| 108P | Gaynier | DE | 751 | Cancelled | |||
| 109P | C. W. Howard | DE | 752 | Cancelled | |||
| 110P | John J. Van Buren | DE | 753 | Cancelled | |||
| 111P | Willard Keith | DE | 754 | Cancelled | |||
| 112P | Paul G. Baker | DE | 755 | Cancelled | |||
| 113P | Damon M. Cummings | DE | 756 | Cancelled | |||
| 114P-119P | DE | 757-762 | Cancelled | ||||
| 120 | Number not used ? | ||||||
| 121 | Sea Angler | US Maritime Comm. | C3-S-A2 | 1544 | 26-Feb-44 | To USN as Cecil (APA 96), sold 1948 as Steel Admiral, scrapped 1973 | |
| 122 | Sea Fiddler | US Maritime Comm. | C3-S-A2 | 1545 | 18-May-44 | Sold 1947 as Hawaiian Refiner, scrapped 1971 | |
| 123 | Sea Flier | US Maritime Comm. | C3-S-A2 | 1546 | 27-May-44 | Sold 1947 as Horace Luckenbach, later Overseas Natalie, scrapped 1971 | |
| 124 | Sea Sturgeon | US Maritime Comm. | C3-S-A2 | 1547 | 18-Jul-44 | Sold 1947 as Hawaiian Farmer, scrapped 1971 | |
| 125 | Sea Runner | US Maritime Comm. | C3-S-A2 | 1548 | 29-Jun-44 | Sold 1947 as Robert Luckenbach, later Overseas Rose, scrapped 1971 | |
| 126 | Sea Ray | US Maritime Comm. | C3-S-A2 | 1549 | 29-Jul-44 | Sold 1947 as Hawaiian Rancher, scrapped 1972 | |
| 127 | Sea Partridge | US Maritime Comm. | C3-S-A2 | 1550 | 30-Sep-44 | Sold 1947 as Steel Vendor, sank 1971 | |
| 128 | Sea Adder | US Maritime Comm. | C3-S-A2 | 1551 | 12-Oct-44 | To USN as Gladwin (APA 106), sold 1947 as Steel Apprentice, scrapped 1973 | |
| 129 | Sea Wren | US Maritime Comm. | C3-S-A2 | 1552 | 11-Nov-44 | To USN as Goodhue (APA 107), sold 1947 as Hawaiian Citizen, scrapped 1982 | |
| 130 | Sea Hare | US Maritime Comm. | C3-S-A2 | 1553 | 13-Dec-44 | To USN as Goshen (APA 108), sold 1947 as Canada Mail, later California Mail, then LaFayette, scrapped 1973 | |
| 131 | Sea Sparrow | US Maritime Comm. | C3-S-A2 | 1554 | 31-Dec-44 | To USN as Grafton (APA 109), sold 1947 as Java Mail, later Carrier Dove, scrapped 1974 | |
| 132 | Sea Cardinal | US Maritime Comm. | C3-S-A2 | 1555 | 29-Jan-45 | Sold 1947 as Steel Architect, scrapped 1971 | |
| 133 | Sea Shark | US Maritime Comm. | C3-S-A2 | 1556 | 17-Feb-45 | Sold 1947 as Steel Maker, scrapped 1973 | |
| 134 | Sea Blenny | US Maritime Comm. | C3-S-A2 | 1557 | 9-Mar-45 | Sold 1947 as Hawaiian Builder, scrapped 1973 | |
| 135 | Sea Thrush | US Maritime Comm. | C3-S-A4 | 1558 | 20-Jul-45 | Sold 1947 as President Taft, later President Harding, scrapped 1973 | |
| 136 | Sea Beaver | US Maritime Comm. | C3-S-A4 | 1559 | 8-Aug-45 | Sold 1947 as President Hoover, scrapped 1973 | |
| 137 | Sea Jumper | US Maritime Comm. | C3-S-A4 | 1560 | 18-Sep-45 | Sold 1947 as President Pierce, scrapped 1973 | |
| 138 | Sea Starling | US Maritime Comm. | C3-S-A4 | 1561 | 12-Jun-46 | Sold 1947 as President Madison, scrapped 1973 | |
| 139 | US Maritime Comm. | C3-S-A4 | 1562 | Cancelled | |||
| 140P | Northwind | WAG | 278 | 26-Feb-44 | To USSR 1944 as Severni Veter, to USN 1951 as Staten Island, to USCG 1966, sold 1975, disposition unknown | ||
| 141P | Eastwind | WAG | 279 | 3-Jun-44 | Sold 1972, disposition unknown | ||
| 142P | Southwind | WAG | 280 | 15-Jul-44 | To USSR 1945 as Kapitan Belusov, to USN 1950 as Atka, to USCG 1966 as Southwind, sold 1976, disposition unknown | ||
| 143P | Westwind | WAG | 281 | 18-Sep-44 | To USSR 1945 as Severni Pulius, to USCG 1950 as Westwind, sold 1988, disposition unknown | ||
| 144P | Northwind | WAG | 282 | 28-Jul-45 | To NDRF 1989, sold 1998 | ||
| 145P | Owasco | WHEC | 39 | 18-May-45 | Scrapped 1974 | ||
| 146P | Winnebago | WHEC | 40 | 21-Jun-45 | Scrapped 1974 | ||
| 147P | Chautauqua | WHEC | 41 | 4-Aug-45 | Scrapped 1974 | ||
| 148P | Sebago | WHEC | 42 | 20-Sep-45 | Scrapped 1974 | ||
| 149P | Iroquois | WHEC | 43 | 9-Feb-46 | Scrapped 1965 | ||
| 150P | Wachusett | WHEC | 44 | 23-Mar-46 | Scrapped 1974 | ||
| 151P | Escanaba | WHEC | 64 | 20-Mar-46 | Scrapped 1974 | ||
| 152P | Winona | WHEC | 65 | 19-Apr-46 | Scrapped 1974 | ||
| 153P | Klamath | WHEC | 66 | 19-Jun-46 | Scrapped 1974 | ||
| 154P | Minnetonka | WHEC | 67 | 11-Jul-46 | Scrapped 1974 | ||
| 155P | Androscroggin | WHEC | 68 | 26-Sep-46 | Scrapped 1974 | ||
| DE | 887-898 | Cancelled 1943 | |||||
| 156-174 | Numbers not used ? | ||||||
| 175 | Sea Phoebe | US Maritime Comm. | C3-S-A4 | 2192 | 29-Jul-46 | Sold 1947 as President McKinley, scrapped 1970 | |
| 176 | Sea Oriole | US Maritime Comm. | C3-S-A4 | 2193 | 22-Aug-46 | Sold 1947 as President Jefferson, scrapped 1970 | |
| 177P | Unnamed | LSM | 233 | Aug-44 | Struck 1946 | ||
| 178P | Unnamed | LSM | 234 | Aug-44 | Struck 1946 | ||
| 179P | Unnamed | LSM | 235 | Aug-44 | To China 1948 | ||
| 180P | Unnamed | LSM | 236 | Sep-44 | To the Philippines 1960 | ||
| 181P | Unnamed | LSM | 237 | Sep-44 | To China 1946 | ||
| 182P | Unnamed | LSM | 238 | Sep-44 | Struck 1946 | ||
| 183P | Unnamed | LSM | 239 | Sep-44 | Scuttled 1947 | ||
| 184P | Unnamed | LSM | 240 | Sep-44 | Struck 1946 | ||
| 185P | Unnamed | LSM | 241 | Oct-44 | Struck 1946 | ||
| 186P | Unnamed | LSM | 242 | Oct-44 | Sold 1948 | ||
| 187P | Unnamed | LSM | 243 | Oct-44 | Struck 1946 | ||
| 188P | Unnamed | LSM | 244 | Oct-44 | Struck 1946 | ||
| 189P | Unnamed | LSM | 245 | Nov-44 | Struck 1946 | ||
| 190P | Unnamed | LSM | 246 | Nov-44 | Struck 1946 | ||
| 191P | Unnamed | LSM | 247 | Nov-44 | Struck 1946 | ||
| 192P | Unnamed | LSM | 248 | Nov-44 | To China 1946 | ||
| 193P | Unnamed | LSM | 249 | Nov-44 | Struck 1946 | ||
| 194P | Unnamed | LSM | 250 | Dec-44 | Struck 1957 | ||
| 195P | Unnamed | LSM | 251 | Dec-44 | Struck 1946 | ||
| 196P | Unnamed | LSM | 252 | Dec-44 | Sunk 1947 | ||
| 197P | Unnamed | LSM | 447 | Dec-44 | Struck 1947 | ||
| 198P | Unnamed | LSM | 448 | Jan-45 | Struck 1958 | ||
| 199P | Unnamed | LSM | 449 | Jan-45 | Struck 1947 | ||
| 200P | Unnamed | LSM | 450 | Jan-45 | Struck 1947 | ||
| 201P | Unnamed | LSM | 451 | Jan-45 | Struck 1947 | ||
| 202P | Unnamed | LSM | 452 | Feb-45 | Struck 1947 | ||
| 203P | Unnamed | LSM | 453 | Feb-45 | To China 1946 | ||
| 204P | Unnamed | LSM | 454 | Feb-45 | Struck 1947 | ||
| 205P | Unnamed | LSM | 455 | Feb-45 | Sold 1959 | ||
| 206P | Unnamed | LSM | 456 | Feb-45 | To China 1947 | ||
| 207P | Unnamed | LSM | 457 | Feb-45 | To China 1946 | ||
| 208P | Unnamed | LSM | 458 | Feb-45 | To VFW in Bellevue NJ 1948 | ||
| 209-243 | Numbers not used ? | ||||||
| 244 | Sovereign of the Seas | US Maritime Comm. | C2-S-B1 | 1157 | 29-Feb-44 | Completed for Moore Dry Dock, sold 1948 as Agwidale, later Oriente, Jean and Oceanic Tide, scrapped 1969 | |
| 245 | White Swallow | US Maritime Comm. | C2-S-B1 | 1158 | Apr-44 | Completed for Moore Dry Dock, sold 1948 as Mormacowl, later Old Westbury, scrapped 1969 | |
| 246P | Burton Island | AG | 88 | 28-Dec-46 | AGB 1 1949, to USCG 1966 as WAGB 283, scrapped 1980 | ||
| 247P | Edisto | AG | 89 | 20-Mar-47 | AGB 2 1949, to USCG 1966 as WAGB 284, scrapped 1980 |