J.K. Welding
Brooklyn NY
JK Welding Company was started by Jacob Klevens. The original yard was on Paidge Avenue, in the Greenpoint section of Brooklyn, just east of the Pulaski Bridge. He later added a second yard near the Brooklyn Navy Yard to build standard barges and a third, at 1 Federal Street, in Yonkers, which is now American Sugar Refining, to build tugs and other small ships.
| O/N | Name | Customer | Type | Tons | LOA | Delivered | Notes | |
| Built in the original Brooklyn Yard | ||||||||
| 5 | 173888 | Socony City 2 | Socony-Vacuum | tank barge | 181 | 105 | Feb 1938 | |
| 7 | Progress | Floating Bridge | Feb 1938 | |||||
| 9 | 174123 | Blue Line 104 | Blue Line | tank barge | 1,148 | 210 | Aug 1938 | |
| 10 | Espee No. 1 | Solvay Sales Corp. | freight barge | 324 | 140 | Sep 1938 | ||
| 237494 | Islander | Shelter Island | ferry | 109 | 62 | 1938 | ||
| 14 | 239074 | Carbany | Cargo Carriers | tugboat | 66 | 45 | Oct 1939 | |
| 240365 | Edward Card | McAllister Bros. | tugboat | 132 | 80 | 1941 | later Diane Richards | |
| Chris Sheedy | 150 | 1941 | ||||||
| cargo barge | 120 | 1942 | sold, Michigan | |||||
| WYC-4144 ? | Passenger ? | 62 | 1945 | in service | ||||
| Built in the second Brooklyn Yard | ||||||||
| YC-733 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-734 | US Navy | open lighter | 170 | 110 | 1941 | later YFNX-4, struck 1995 | ||
| YC-742 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-743 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-744 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-749 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-750 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-751 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-752 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YC-753 | US Navy | open lighter | 170 | 110 | 1941 | later YFT-1 | ||
| YC-754 | US Navy | open lighter | 170 | 110 | 1941 | |||
| YCF-14 | US Navy | car float | 174 | 150 | 1941 | scrapped 1977 | ||
| YCF-15 | US Navy | car float | 174 | 150 | 1941 | scrapped 1977 | ||
| YCF-16 | US Navy | car float | 174 | 150 | 1942 | sold 2008 | ||
| YCF-17 | US Navy | car float | 174 | 150 | 1942 | |||
| YCF-18 | US Navy | car float | 174 | 150 | 1942 | disposed-of 1946 | ||
| YFN-264 | US Navy | closed lighter | 170 | 110 | 1941 | |||
| YFN-266 | US Navy | closed lighter | 170 | 110 | 1941 | |||
| YFN-271 | US Navy | closed lighter | 170 | 110 | 1941 | later YRB-8 | ||
| YFN-275 | US Navy | closed lighter | 170 | 110 | 1941 | |||
| YFN-284 | US Navy | closed lighter | 170 | 110 | 1941 | |||
| YFN-285 | US Navy | closed lighter | 170 | 110 | 1941 | later YC-1349 | ||
| YFN-288 | US Navy | closed lighter | 170 | 110 | 1941 | later YFNX-21, sold 1978 | ||
| YFN-289 | US Navy | closed lighter | 170 | 110 | 1941 | later YRB-25, struck 1999 | ||
| YFN-358 | US Navy | closed lighter | 170 | 110 | 1942 | |||
| YFN-359 | US Navy | closed lighter | 170 | 110 | 1942 | |||
| YFN-412 | US Navy | closed lighter | 170 | 110 | 1942 | later YFRN 412 | ||
| YFN-413 | US Navy | closed lighter | 170 | 110 | 1942 | sold 1996 | ||
| YFN-414 | US Navy | closed lighter | 170 | 110 | 1942 | |||
| YR-24 | US Navy | repair barge | 530 | 150 | 1942 | to Vietnam, scrapped 1985 | ||
| YR-25 | US Navy | repair barge | 530 | 150 | 1942 | to Marine Corps 2003 | ||
| BG-475 | US Army | tank barge | 120 | Oct 1942 | ||||
| BG-476 | US Army | tank barge | 120 | Oct 1942 | ||||
| BG-477 | US Army | tank barge | 120 | Nov 1942 | ||||
| BG-478 | US Army | tank barge | 120 | Nov 1942 | ||||
| BG-248 | US Army | tank barge | 120 | Jan 1943 | ||||
| BG-249 | US Army | tank barge | 120 | Feb 1943 | ||||
| Built in the Yonkers Yard | ||||||||
| 6 | FS-349 | US Army | freighter | 560 | 176 | May 1944 | USCG-manned, to the Philippines as Lanao; existence in doubt 1989 | |
| 7 | FS-350 | US Army | freighter | 560 | 176 | June 1944 | USCG-manned, Jekyl, Betty K IV, Sea Princess II, Nilo, Hope I | |
| 8 | FS-351 | US Army | freighter | 560 | 176 | Aug 1944 | USCG-manned, J. Frank Jett; scrapped 1989 | |
| 9 | FS-352 | US Army | freighter | 560 | 176 | July 1944 | USCG-manned, to Korea as City of Iri, Iri; existence in doubt 1998 | |
| 10 | FS-353 | US Army | freighter | 560 | 176 | Sep 1944 | USCG-manned, to China as Jonquil | |
| 11 | FS-354 | US Army | freighter | 560 | 176 | Oct 1944 | USCG-manned, to China as Lily | |
| 12 | FS-355 | US Army | freighter | 560 | 176 | Nov 1944 | USCG-manned, retained by USA as PVT Carl V. Sheridan, sold 1972 as John S Dempster Jr, reefed off DE 2021 | |
| 13 | FS-356 | US Army | freighter | 560 | 176 | Dec 1944 | USCG-manned, to Korea as City of Waegwan | |
| [one of above] | US Army | freighter | 1944 | sold 19xx as Don Francisco; lost 1978 | ||||
| 23 | 249023 | Big Bottle | Pepsi Cola | freighter | 83 | 62 | Nov 1945 | |
| 48 | ST-44 | Captain Lawrence B. Morris | US Army | tugboat | 74 | Jan 1943 | sold 1954; later Alessandra Neri; scrapped 1986 | |
| 49 | ST-45 | Captain Mark C. Neff | US Army | tugboat | 74 | Feb 1943 | ||
| 50 | ST-46 | Captain Philip J. O'Brien | US Army | tugboat | 74 | Dec 1942 | to Venezuela as Esteban Rojas; stricken 1958 | |
| 63 | ST-75 | US Army | tugboat | 74 | Aug 1943 | |||
| 64 | ST-76 | US Army | tugboat | 74 | Sep 1943 | to Italy as Boeo (Y-417); stricken 1986 | ||
| 65 | ST-77 | US Army | tugboat | 74 | Sep 1943 | to Italy as Albenga (Y-412); stricken c1990 | ||
| 66 | ST-78 | US Army | tugboat | 74 | Nov 1943 | sold 1948 as Martha, Tiuna; scrapped 1984 | ||
| 67 | ST-79 | US Army | tugboat | 74 | Aug 1943 | to Finland 1946 as No. 13, then Merikarhu;later museum at Hamina | ||
| 68 | ST-80 | US Army | tugboat | 74 | Nov 1943 | sold 1948 as Dragon, then Luigi Noli, Torretta;later museum at Genoa as ST-80 | ||
| 69 | ST-81 | US Army | tugboat | 74 | Dec 1943 | sold 1955; later Americano Neri; scrapped 1986 | ||
| 70 | ST-82 | US Army | tugboat | 74 | Dec 1943 | to Finland 1946 as No.15, then DR-15, No.15, Korceakari, Mistral 2, Jean-Michel, ILPC No.1; scrapped c1985 | ||
| 71 | ST-83 | US Army | tugboat | 74 | Oct 1943 | to Finland 1946 as No.3, then DR-3, No.3, Vigor, Riviera, Cala Bianca; scrapped c1988 | ||
| 72 | ST-84 | US Army | tugboat | 74 | Oct 1943 | to France 1946 as ST-84; scrapped 1971 | ||
| 73 | ST-480 | US Army | tugboat | 74 | Feb 1944 | to Finland 1946 as No.12, Tolvan 1947 | ||
| 74 | ST-481 | US Army | tugboat | 74 | Feb 1944 | to Finland 1946 as No.5, then DR-5, No.5, Nalle, Poitsila 2, Merikari, Panda; scrapped 1974 | ||
| 75 | ST-482 | US Army | tugboat | 74 | Mar 1944 | sold 1946 as Frank P Buchanan; scrapped 1990s | ||
| 76 | ST-483 | US Army | tugboat | 74 | Mar 1944 | later Dozier; sold 1994 as Babette, Miss Peggy | ||
| 77 | ST-484 | US Army | tugboat | 74 | Mar 1944 | sold 1946 as Choptank, Margaret Barker, Tralfamadore, Last Chance | ||
| 78 | ST-485 | US Army | tugboat | 86 | Apr 1944 | to France as ST-5; scrapped 1981 | ||
| 79 | ST-486 | US Army | tugboat | 86 | Apr 1944 | to Italy as Ausonia; scrapped 1983 | ||
| 80 | ST-487 | US Army | tugboat | 86 | Apr 1944 | to Portugal as Catumbela (later to Angola) | ||
| 81 | ST-488 | US Army | tugboat | 86 | May 1944 | to France as ST-8;later museum in Le Havre as ST-488 | ||
| 82 | ST-489 | US Army | tugboat | 86 | June 1944 | sold 1948 as Puissance, Syros, Dimitrios | ||
| 83 | ST-490 | US Army | tugboat | 86 | June 1944 | to France as ST-10, Ambes; lost 1955 | ||
| 97 | ST-889 | US Army | tugboat | 86 | Mar 1945 | |||
| 98 | ST-890 | US Army | tugboat | 86 | Apr 1945 | sold 1961 as Martin D; foundered 1974 | ||
| 99 | ST-891 | US Army | tugboat | 86 | May 1945 | |||
| 100 | ST-892 | US Army | tugboat | 86 | May 1945 | sold 1976, Sampit | ||
| 101 | ST-893 | US Army | tugboat | 86 | July 1945 | Conv research; sold 1998, US Army Ret ST 893. offered for sale on e-bay Aug-09 | ||
| 102 | ST-894 | US Army | tugboat | 86 | July 1945 | sold 1980 as Liability, Jupiter | ||
| 103 | ST-895 | US Army | tugboat | 86 | May 1945 | transferred to USSR | ||
| 104 | ST-896 | US Army | tugboat | 86 | 1946a | transferred to USSR | ||
| 105 | ST-897 | US Army | tugboat | 86 | 1946a | transferred to USSR | ||
| Oil Barge No. 4 | NY City | tank barge | 1967 | |||||