Pre-WWII Construction by Other Gulf Coast Boatbuilders
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| Builder | Location | O/N | Original Name | Customer | Type | GT | LOA | Built | Notes | |
| Florida | ||||||||||
| Blount, F. M. | Pensacola FL | SC-156 | US Navy | subchaser | 85d | 30 Oct 2017 | sold 1924 | |||
| Blount, F. M. | Pensacola FL | SC-157 | US Navy | subchaser | 85d | 13 Mar 2018 | sold 1921 | |||
| Blount, F. M. | Pensacola FL | SC-158 | US Navy | subchaser | 85d | 13 Mar 2018 | sold 1921 | |||
| Blount, F. M. | Pensacola FL | SC-159 | US Navy | subchaser | 85d | 17 Sep 2017 | sold 1926 | |||
| Hansen, H. | Fort Myers FL | Karen S. Nygaard | tugboat | 1920 | ||||||
| Mississippi | ||||||||||
| Cox & Stevens | Biloxi MS | Cajun | 1939 | to USN 1941 as YP-162, to Panama 1944, to MARAD 1946 | ||||||
| Favre, T. M. | Gulfport MS | YO-36 | US Navy | tank barge | 1917 | ex-Curacao, sold 1921 | ||||
| M. M. Flechas | Pascagoula MS | Aster (WAGL-269) | USCG | tender | 1922 | decommissioned 1946 | ||||
| Louisiana | ||||||||||
| Williams McWilliams | New Orleans LA | Queen | towboat | 1934 | ||||||
| Williams McWilliams | Morgan City LA | Southern Nirvana | tugboat | 1936 | ||||||
| Williams McWilliams | Plaquemine LA | Southern Nirvana | Williams McWilliams | tugboat | 1936 | |||||
| Williams McWilliams | Plaquemine LA | Pandora | Williams McWilliams | tugboat | 1939 | |||||
| Texas | ||||||||||
| Bauer Dredging | Port Lavaca TX | US Army | ferry | 1942 | Maj R. O. White | |||||
| Elliott, B. H. | Houston TX | Captain | 1936 | |||||||
| Mosher Steel | Dallas TX | BCS-2604 to 2611 | US Army | barge, deck, KD | 45 | 1943 | ||||
| Slade, Herbert | Beaumont TX | Ella | tugboat | 1937 | ||||||
| Slade, Herbert | Beaumont TX | Julie Dee | tugboat | 1937 | ||||||