Other Auxiliaries (AGB, AGC, AGDS, AGEH, AGER, AGF, AGM, AGMR, AGP, AGR, AGTR)

Most recent update: April 6, 2015.
Many auxiliaries were created by converting existing ships; others were built new but starting with an existing design; the balance were both designed and built for their purpose.  In this table, the grey cells identify the second and third categories - the ships that were purpose-built.  There are some gaps in the data, particularly for the conversions: if anyone has any corrections or additions to offer, please send them to me at timcolton@aol.com
Type # Original Name Built by Hull # US Govt. Design or Type US Govt. # Built Converted by Post-Conversion Name LDT LOA Delivered as an AG Disposition
Icebreakers (AGB)
AGB 1 Burton Island Western Pipe & Steel 246     1946     3,575 269 1-Mar-49 AG 88 1946-49, WAGB 283 1966, scrapped 1980
AGB 2 Edisto Western Pipe & Steel 247     1946     3,575 269 1-Mar-49 AG 89 1946-49, WAGB 284 1966, scrapped 1977
AGB 3 Southwind Western Pipe & Steel 142     1947   Atka 3,575 269 1-Oct-50 AG 90 1947-50, WAGB 280 1966, scrapped 1974
AGB 4 Glacier Ingalls Pascagoula 580     1955       310 27-May-55 WAGB 4 1966, scrapped 2012
AGB 5 Staten Island Western Pipe & Steel 140     1944   Staten Island 3,575 269 31-Jan-52 Severny Vater (USSR) 1944-51, scrapped 1974
AGB 6 Westwind Western Pipe & Steel       1944   Westwind 3,575 269 1-Feb-52 Severny Pulius (USSR) 1944-51, WAGB 281 1953, scrapped 1988
Command Ships (AGC)
AGC 1 Appalachian Federal Kearny 242 C2-S-B1 200   Todd Brooklyn   6,555 459 2-Oct-43 Scrapped 1960
AGC 2 Blue Ridge Federal Kearny 243 C2-S-B1 201   Beth Brooklyn   6,555 459 27-Sep-43 Scrapped 1962
AGC 3 Rocky Mount Federal Kearny 244 C2-S-B1 202   Beth Hoboken   6,555 459 16-Oct-43 Scrapped 1973
AGC 4 Ancon Bethlehem Quincy       1939 Norfolk NSY     493 26-Feb-43 AP 66 1942, returned to owner 1951, State of Maine 1962, scrapped 1973
AGC 5 Mary Whitridge Moore Dry Dock 231 C2-S-B1 295   Philadelphia NSY Catoctin 6,555 459 31-Aug-43 Scrapped 1959
AGC 6 Duane Philadelphia NSY       1936           WPC 63 1936-43, not used by USN, WAGC 33 1944, reefed off Key Largo 1987
AGC 7 Cyclone North Carolina SB 92 C2-S-AJ1 1347   Philadelphia NSY Mount McKinley 6,350 459 1-May-44 LCC 7 1969, scrapped 1977
AGC 8 Eclipse North Carolina SB 93 C2-S-AJ1 1348   Boston NSY Mount Olympus 6,350 459 4-May-44 Scrapped 1973
AGC 9 Fleetwing North Carolina SB 94 C2-S-AJ1 1349   Norfolk NSY Wasatch 6,350 459 20-May-44 Scrapped 1960
AGC 10 Kathay North Carolina SB 96 C2-S-AJ1 1351   Beth Hoboken Auburn 6,350 459 20-Jul-44 Scrapped 1961
AGC 11 Monsoon North Carolina SB 97 C2-S-AJ1 1352   Beth Brooklyn Eldorado 6,350 459 26-Aug-44 LCC 11 1969, scrapped 1973
AGC 12 Morning Star North Carolina SB 98 C2-S-AJ1 1353   Norfolk NSY Estes 6,350 459 9-Oct-44 LCC 12 1969, scrapped 1977
AGC 13 Northern Light North Carolina SB 99 C2-S-AJ1 1354   Todd Hoboken Panamint 6,350 459 14-Oct-44 Scrapped 1961
AGC 14 Witch of the Wave North Carolina SB 108 C2-S-AJ1 1363   ??? Brooklyn Teton 6,350 459 18-Oct-44 Scrapped 1962
AGC 15 Adirondack North Carolina SB 196 C2-S-AJ1 1705   Philadelphia NSY   6,350 459 2-Sep-45 Scrapped 1972
AGC 16 Pocono North Carolina SB 198 C2-S-AJ1 1707   Boston NSY   6,350 459 29-Dec-45 LCC 16 1969, scrapped 1976
AGC 17 Taconic North Carolina SB 201 C2-S-AJ1 1710   Atlantic Basin IW   6,350 459 16-Jan-45 LCC 17 1969, scrapped 1976
AGC 18 Biscayne Puget Sound NSY       1941     1,766 311 10-Oct-44 AVP 11 1941-43, Dexter (WAGC 18) 1949, WAVP 385, WHEC 385 1966, sunk as target 1969
AGC 19 Blue Ridge Philadelphia NSY       1967       634 1967 LCC 19 1970, active
AGC 20 Mount Whitney Newport News SB       1970       620 1970 LCC 20 1970, active
Deep Submergence Support Ships (AGDS)
AGDS 1 ARD 20 Pacific Bridge   ARD 12 Class ARD 20 1944   White Sands 5,200 292 1-Aug-73 Sold 1974, active at Lake Union DD
AGDS 2 Point Barrow Maryland SB   S2-ST-23a MA 43 1958   Point Loma 10,320 465 1974 AKD 1 1958-74, struck 1993, scrapped 2006
Hydrofoil Research Ships (AGEH)
AGEH 1 Plainview Lockheed SB             310 221 1-Mar-69 Stripped 1979, hull abandoned near Knappton WA: see it here
Environmental Research Ships (AGER)
AGER 1 Captain William Galt Kewaunee SB   Fast Supply FS 345 1946 Puget Sound NSY Banner 550 177 1-Jun-67 AKL 25 1950-67, scrapped 1970
AGER 2   Kewaunee SB   Fast Supply FS 344 1946 Puget Sound NSY Pueblo 550 177 13-May-67 AKL 44 1950-67, seized by North Korea 1968
AGER 3 Colonel Armond Peterson Higgins Ind.   Fast Supply FS 217 1944 Puget Sound NSY Palm Beach 550 177 2-May-67 AKL 45 1950-67, sold 1969 as Oro Verde, reefed in the Cayman I.
Command Ships (AGF)
AGF 1 Valcour Lake Washington SY   Seaplane Tender AVP 55 1946     1,766 311 15-Dec-65 Scrapped 1977
AGF 3 LaSalle New York NSY   Assault Ship LPD 3 1964     8,650 522 1-Jul-72 Sunk as target 2007
AGF 11 Coronado Lockheed SB   Assault Ship LPD 11 1970     9,687 570 15-Aug-80 Sunk as target 2012
Range Instrumentation Ships (AGM)
AGM 1 Skidmore Victory Oregon SB   VC2-S-AP3 685 1945 Ingalls SB Range Tracker 4,512 455 27-Nov-60 President Buchanan 1945-60, AG 160 1960, scrapped 1970
AGM 2 FS 278 Wheeler SB   Fast Supply FS 278 1944 Pacific SR Range Recoverer 550 178 27-Nov-60 AG 161 1960, YFRT 524 1972, scrapped 1974
AGM 3 Haiti Victory Permanente No. 1   VC2-S-AP3 532 1945   Longview 4,512 455 27-Nov-60 AK 238 1950-60, scrapped 1976
AGM 4 Owensboro Victory Permanente No. 2   VC2-S-AP3 719 1945   Richfield 4,512 455 27-Nov-60 AK 253 1950-60, scrapped 1976
AGM 5 Dalton Victory California SB   VC2-S-AP3 21 1945   Sunnyvale 4,512 455 27-Nov-60 AK 256 1950-60, scrapped 1976
AGM 6 Niantic Victory Oregon SB   VC2-S-AP3 100 1945   Watertown 4,512 455 27-Nov-60 Scrapped 1974
AGM 7 Knox Victory Oregon SB   VC2-S-AP3 1238 1945 Triple A Machine Huntsville 4,512 455 1961 Scrapped 1975
AGM 8 Seton Hall Victory Oregon SB   VC2-S-AP3 686 1945   Wheeling 4,512 455 28-May-64 Sunk as target 1981
AGM 9 GEN R. E. Callan Permanente No. 3   C4-S-A1   1944   GEN H. H. Arnold 9,950 553 1-Jul-64 AP 139 1944-64, scrapped 1982
AGM 10 GEN Harry Taylor Permanente No. 3   C4-S-A1   1944   GEN Hoyt S. Vandenberg 9,950 553 13-Jul-64 AP 145 1944-64, reefed off the Florida Keys 2007
AGM 11 Twin Falls Victory Oregon SB   VC2-S-AP3 167 1945   Twin Falls 4,512 455 ? AGS 37 ?, to NY City 1973, scrapped 1982
AGM 12 George Calvert Beth Fairfield   EC2-S-C1 20 1942   American Mariner 4,023 442 ? American Mariner 1942-67, now target ship in Chesapeake Bay
AGM 13 Sword Knot Consolidated Wilm.   C1-M-AV1 2466 1945   Sword Knot 3,366 339 1-Jul-64 To NDRF 1968, scrapped 1973
AGM 14 Rose Knot Pennsylvania SY   C1-M-AV1   1945   Rose Knot 3,366 339 1-Jul-64 To NDRF 1968, scrapped 1977
AGM 15 Coastal Sentry Smith SB, Leathem D.   C1-M-AV1 2166 1945   Coastal Sentry 3,366 339 1-Jul-64  
AGM 16 Coastal Crusader Smith SB, Leathem D.   C1-M-AV1 2174 1945   Coastal Crusader 3,366 339 1-Jul-64 AGS 36 1969, scrapped 1977
AGM 17 Timber Hitch Consolidated Wilm.   C1-M-AV1 2315 1945   Timber Hitch 3,366 339 1-Jul-64 To NDRF 1968, scrapped 1977
AGM 18 Sampan Hitch Butler Superior   C1-M-AV1 2133 1945   Sampan Hitch 3,366 339 1-Jul-64 To NDRF 1968, scrapped 1973
AGM 19 Mission San Fernando MarinShip   T2-SE-A2 1274 1944 GD Quincy Muscle Shoals/Vanguard 5,532 523 28-Sep-64 AO 122 1947-64, AG 194 1980-99
AGM 20 Mission De Pala MarinShip   T2-SE-A2 1280 1944 GD Quincy Johnstown/Redstone 5,532 523 8-Apr-65 AO 114 1947-64, sold 1995
AGM 21 Mission San Juan MarinShip   T2-SE-A2   1944 GD Quincy Flagstaff/Mercury 5,532 523 1-Sep-65 AO 126 1947-64, sold 1970 as Kopaa, scrapped 1984
AGM 22 Sherburne Permanente No. 2   VC2-S-AP3 553 1945   Range Sentinel 4,512 455 21-Oct-71 APA 205 1944-69, to NDRF 1999
AGM 23 Empire State Mariner New York Ship   C4-S-A1 MA 28 1954 Maryland SB Observation Island 13,000 564 18-Aug-77 AG 154 1958-77, to NDRF 2014
AGM 24 Invincible Tacoma Boat   T-AGOS 10 1987   Invincible 1,565 224 4-Apr-00 Active
AGM 25 Howard O. Lorenzen VT Halter Marine           Howard O. Lorenzen 12,229 534 10-Jan-12 Active
Communications Relay Ships (AGMR)
AGMR 1 Gilbert Islands Todd Tacoma 57 Escort Carrier CVE 107 1945   Annapolis 11,373 558 1-Jun-63 AKV 39 1959-63, scrapped 1979
AGMR 2 Saipan New York Ship 469 Light Carrier CVL 48 1946 Alabama DD Arlington 14,500 684 27-Aug-66 AVT 6 1959-66, scrapped 1976
Torpedo Boat Tenders (AGP)
AGP 1 Hi-Esmaro Bath Iron Works   Yacht   1929   Niagara 1,922 267 13-Jan-43 PG 52 1940-42, sunk off New Guinea 1943
AGP 2 Caroline/Moana Bath Iron Works   Yacht   1931   Hilo 2,350 279 13-Jan-43 PG 58 1940-42, sold 1946, scrapped 1958
AGP 3 Savarona/Alder Pusey & Jones   Yacht   1928   Jamestown 2,250 294 13-Jan-43 PG 55 1940-42, sold 1946
AGP 4 LST 330 Philadelphia NSY         Philadelphia NSY Portunus 3,960 328 12-Jun-43 Scrapped 1948
AGP 5 LST 14 Dravo Pittsburgh         Tampa SB Varuna 3,960 328 31-Aug-43 Sold 1947 as Guaralina
AGP 6 Oyster Bay Lake Washington SY         Lake Washington SY   1,766 311 17-Nov-43 AVP 28 1949, to Italy 1957 as Pietro Cavezale (A 5301), scrapped 1996
AGP 7 Mobjack Lake Washington SY         Lake Washington SY   1,766 311 17-Oct-43 To C & G S 1946 as Pioneer, scrapped 1967
AGP 8 Wachapreague Lake Washington SY         Lake Washington SY   1,766 311 17-May-44 To USCG 1946 as McCulloch (WAVP 386), to Vietnam 1972 as Ngo Kuyen (HQ 06), to the Philippines 1975 as Gregorio de Pilar (PF 8), struck 1986
AGP 9 Willoughby Lake Washington SY         Lake Washington SY   1,766 311 18-Jun-44 To USCG 1946 as Gresham (WAVP 387), scrapped 1973
AGP 10 LST 135 Chicago Bridge         Maryland Drydock Orestes 3,960 328 25-Apr-44 Scrapped 1948
AGP 11 LST 604 Chicago Bridge         Maryland Drydock Silenus 3,960 328 9-Aug-44 Scrapped 1947
AGP 12 Cape Carthage Pusey & Jones 1092 C1-A 304   Maryland Drydock Acontius 5,236 415 23-Jun-44 Sold 1946, scrapped 1965
AGP 13 Cape Farewell Pusey & Jones 1095 C1-A 891   Maryland Drydock Cyrene 5,236 415 27-Sep-44 Sold 1946, scrapped 1978
AGP 14 LST 977 Beth Hingham 3447       Maryland Drydock Alecto 3,960 328 28-Jul-45 To Turkey 1948 as Onaran (A 581)
AGP 15 LST 966 Beth Hingham 3436       Maryland Drydock Callisto 3,960 328 12-Jun-45 Scrapped 1947
AGP 16 LST 773 Chicago Bridge         Maryland Drydock Antigone 3,960 328 14-May-45 Scrapped 1947
AGP 17 LST 1125 Chicago Bridge         Maryland Drydock Brontes 3,960 328 14-Aug-45 Sold 1947, wrecked 1959
AGP 18 LST 1133 Chicago Bridge         Maryland Drydock Chiron 3,960 328 18-Sep-45 Sold 1947 as Altamar, wrecked 1960
AGP 19                       Number not used
AGP 20 LST 201 Chicago Bridge         in New Orleans Pontus 3,960 328 15-Aug-44 Scrapped 1947
Radar Picket Ships (AGR)
AGR 1 James Squires Jones Panama City 97 EC2-S-C5 3137 1945 Charleston NSY Guardia 5,800 440 1-Feb-55 Scrapped 1971
AGR 2 Claude B. Kitchen Jones Panama City 99 EC2-S-C5 3139 1945 Charleston NSY Lookout 5,800 440 5-Mar-55 Scrapped 1970
AGR 3 Raphael R. Rivera Jones Panama City 78 EC2-S-C5 2337 1945 Charleston NSY Skywatcher 5,800 440 29-Mar-55 Scrapped 1971
AGR 4 James W. Wheeler Jones Panama City 79 EC2-S-C5 2338 1945 Charleston NSY Searcher 5,800 440 28-Sep-55 Scrapped 1970
AGR 5 Edwin D. Howard Jones Panama City 85 EC2-S-C5 2344 1945 Charleston NSY Scanner 5,800 440 30-Jan-56 Scrapped 1974
AGR 6 Frank O. Peterson Jones Panama City 88 EC2-S-C5 2347 1945 Charleston NSY Locator 5,800 440 21-Jan-56 Scrapped 1975
AGR 7 James F. Harrell Jones Panama City 98 EC2-S-C5 3138 1945 Norfolk NSY Picket 5,800 440 8-Feb-56 Scrapped 1978
AGR 8 Edward W. Burton Jones Panama City 107 EC2-S-C5 3147 1945 Charleston NSY Interceptor 5,800 440 15-Feb-56 Scrapped 1978
AGR 9 Charles A. Draper Jones Panama City 77 EC2-S-C5 2336 1945 Charleston NSY Investigator 5,800 440 16-Jan-57 Scrapped 1971
AGR 10 Francis J. O'Gara Jones Panama City 100 EC2-S-C5 3140 1945 Philadelphia NSY Outpost 5,800 440 6-Feb-57 Scrapped 1971
AGR 11 Warren P. Marks Jones Panama City 87 EC2-S-C5 2346 1945 Charleston NSY Protector 5,800 440 20-Feb-57 Scrapped 2005
AGR 12 Raymond Van Brogen Jones Panama City 80 EC2-S-C5 2339 1945 Philadelphia NSY Vigil 5,800 440 5-Mar-57 Scrapped 1970
AGR 13 Edwin H. Duff Jones Panama City 102 EC2-S-C5 3142 1945 Charleston NSY Interdictor 5,800 440 7-Apr-58 Scrapped 1974
AGR 14 Dudley H. Thomas Jones Panama City 82 EC2-S-C5 2341 1945 Philadelphia NSY Interpreter 5,800 440 29-Sep-58 Scrapped 1974
AGR 15 William J. Riddle Jones Panama City 81 EC2-S-C5 2340 1945 Charleston NSY Interrupter/Tracer 5,800 440 16-Oct-58 Sold 1974 as Unisea, scrapped 2000
AGR 16 Vernon S. Wood Jones Panama City 84 EC2-S-C5 2343 1945 Charleston NSY Watchman 5,800 440 5-Jan-59 Scrapped 1974
Technical Research Ships (AGTR)
AGTR 1 Samuel R. Aiken New England SB   Z-EC2-S-C5 3127 1945 New York NSY Oxford 5,800 440 1-Apr-64 AG 159 1962-64, scrapped 1970
AGTR 2 Robert W. Hart New England SB   Z-EC2-S-C5 3125 1945 Newport News SB Georgetown 5,800 440 1-Apr-64 AG 165 1963-64, scrapped 1974
AGTR 3 J. Howland Gardner New England SB   Z-EC2-S-C5 3126 1945   Jamestown 5,800 440 1-Apr-64 AG 166 1963-64, scrapped 1970
AGTR 4 Iran Victory Oregon SB   VC2-S-AP3 V 94 1945 Willamette I & S Belmont 4,420 455 1-Apr-64 AG 167 1963-64, scrapped 1970
AGTR 5 Simmons Victory Oregon SB   VC2-S-AP3 V 182 1945 Willamette I & S Liberty 4,420 455 1-Apr-64 AG 168 1963-64, scrapped 1973