| Type | Pennant # | Original Name | Navy Name | Original Function | Functions as AG | Built by | Location | Built | Acquired | Became AG | Converted by | LDT | Disposition |
| AG | 1 | Joseph Holland | Hannibal | Collier | Tender/Survey Ship | Blumer & Co. | Sunderland, England | 1898 | 1898 | 9-Feb-21 | 4,000 | Sunk as target 1945 | |
| AG | 2 | Lebanon | Lebanon | Collier | Target Towing Ship | Cramp Shipbuilding | Philadelphia PA | 1894 | 1898 | 17-Jul-20 | 3,285 | Sold 1922 | |
| AG | 3 | Nanshan | Nanshan | Collier | Target Repair Ship | Grangemouth DY | Grangemouth, Scotland | 1896 | 1898 | 17-Jul-20 | 5,059 | Sold 1922 | |
| AG | 4 | Saturn | Saturn | Collier | Communications with Alaska | Harlan & Hollingsworth | Wilmington DE | 1890 | 1898 | 17-Jul-20 | 4,840 | Scrapped 1922 | |
| AG | 5 | General Alava | General Alava | Transport | Transport | McMillan & Sons | Dumbarton, Scotland | 1895 | 1900 | 17-Jul-20 | 1,390 | Captured from the Spanish, sunk as target 1945 | |
| AG | 6 | Dubuque | Dubuque | Gunboat (PG 17) | Training Ship | Gas Engine & Power | Bronx NY | 1904 | 1919 | 1,225 | Scrapped 1946 | ||
| AG | 7 | Paducah | Paducah | Gunboat (PG 18) | Survey Ship/Training Ship | Gas Engine & Power | Bronx NY | 1905 | 1919 | 1,225 | Sold 1946, Israeli refugee ship "Geulah", scrapped 1951 | ||
| AG | 8 | Mahanna | Mahanna | Freighter | Survey Ship | McEachern & Co. | Astoria OR | 1919 | 1920 | 29-Sep-20 | 6,125 | Struck 1921 | |
| AG | 9 | H. F. Alexander | Great Northern | Passenger Liner | Transport/Flagship | Cramp Shipbuilding | Philadelphia PA | 1915 | 1917 | 11-Aug-21 | 8,255 | Later "Columbia", scrapped 1946 | |
| AG | 10 | Nedmac | Antares | Freighter | Flagship/Transport | A.I.S.C. | Philadelphia PA | 1919 | 1921 | 23-Feb-22 | 11,450 | Later AKS 3, scrapped 1947 | |
| AG | 11 | Shaume | Procyon | Freighter | Training Ship | A.I.S.C. | Philadelphia PA | 1919 | 1921 | 11,450 | Later "American Pilot", "Bay State II" and "Empire State" | ||
| AG | 12 | Gold Star | Gold Star | Freighter | Cargo Ship/Flagship | Bethlehem Steel | Wilmington DE | 1919 | 1921 | 2-May-22 | 4,860 | Previously AK 12, scrapped 1947 | |
| AG | 13 | Nicaria | Pensacola | Freighter | Transport | AG Neptun | Rostock, Germany | 1917 | 26-Jun-22 | 9,821 | Previously AK 7, scrapped 1925 | ||
| AG | 14 | Abarenda | Abarenda | Collier | Transport | Edwards Shipbuilding | Newcastle, England | 1892 | 1898 | 1-Jul-24 | 6,700 | Previously AC 13, sold 1926 | |
| AG | 15 | Scindia | Ajax | Collier | Aircraft Tender | D. & W. Henderson | Glasgow, Scotland | 1890 | 1898 | 1-Jul-24 | 9,250 | Previously AC 14, sold 1925 | |
| AG | 16 | Utah | Utah | Battleship (BB 31) | Target Ship | New York Ship | Camden NJ | 1911 | 1-Apr-32 | 21,825 | Sunk at Pearl Harbor 1941 | ||
| AG | 17 | Wyoming | Wyoming | Battleship (BB 32) | Gunnery Training Ship | Cramp Shipbuilding | Philadelphia PA | 1912 | 1-Jul-31 | 26,000 | Scrapped 1947 | ||
| AG | 18 | Stoddert | Stoddert | Destroyer (DD 302) | Target Ship | Bethlehem Steel | San Francisco CA | 1920 | 30-Jun-31 | 1,215 | Scrapped 1935 | ||
| AG | 19 | Boggs | Boggs | Destroyer (DD 136) | Target Ship | Mare Island NSY | Vallejo CA | 1918 |