| U.S. farm-power org. | 20 |
| U.S. fashion designer | 21 |
| U.S. federal documents producer | 31 |
| U.S. fighter plane | 18 |
| U.S. fighters | 13 |
| U.S. film critic-author | 23 |
| U.S. film executive | 19 |
| U.S. financier and bon vivant | 29 |
| U.S. financier Jay | 18 |
| U.S. financier-philanthropist | 29 |
| U.S. financier-philanthropist: 1795–1873 | 47 |
| U.S. flag designer: 1818 | 24 |
| U.S. flagpole sitter | 20 |
| U.S. flight agency | 18 |
| U.S. flight org. | 16 |
| U.S. flying branch: Abbr. | 25 |
| U.S. flying unit | 16 |
| U.S. foe of 1898 | 16 |
| U.S. foe of old | 15 |
| U.S. folk character | 19 |
| U.S. folk singer | 16 |
| U.S. folk song | 14 |
| U.S. food giant whose brands include Banquet and Chef Boyardee | 62 |
| U.S. food retailer that reached its peak in the mid-1900s | 57 |
| U.S. force in Europe | 20 |
| U.S. force in Vietnam: abbr. | 28 |
| U.S. foreign aid, mostly | 24 |
| U.S. fort where gold is kept | 28 |
| U.S. four-dollar coin issued in 1879 | 36 |
| U.S. fraud watchdog | 19 |
| U.S. frontiersman | 17 |
| U.S. funder of biomedical research | 34 |
| U.S. game bird | 14 |
| U.S. gas brand | 14 |
| U.S. gas brand of yore | 22 |
| U.S. gas brand retired in 1972 | 30 |
| U.S. gas chain | 14 |
| U.S. general | 12 |
| U.S. general and tennis ace | 27 |
| U.S. general's command | 26 |
| U.S. Gold Bullion Depository site | 33 |
| U.S. gold coin | 14 |
| U.S. gold coins | 15 |
| U.S. gov't bond | 19 |
| U.S. government document producer | 33 |
| U.S. govt. agency | 17 |
| U.S. Govt. agents | 17 |
| U.S. govt. bill | 15 |
| U.S. govt. broadcast service | 28 |
| U.S. govt. broadcaster | 22 |
| U.S. Govt. building | 19 |
| U.S. Govt. org. | 15 |
| U.S. govt. radio | 16 |
| U.S. Grant adversary | 20 |
| U.S. Grant et al. | 17 |
| U.S. Grant foe | 14 |
| U.S. Grant opponent | 19 |
| U.S. Grant target | 17 |
| U.S. Grant's adversary | 26 |
| U.S. Grant's home state | 27 |
| U.S. Grant's men | 20 |
| U.S. Grant's school: Abbr. | 30 |
| U.S. Grant, for one | 19 |
| U.S. Green Building Council rating system | 41 |
| U.S. green card distributor | 27 |
| U.S. group of fliers | 20 |
| U.S. gun lobby | 14 |
| U.S. health org. | 16 |
| U.S. health promoter: Abbr. | 27 |
| U.S. health protector | 21 |
| U.S. health watchdog | 20 |
| U.S. hero | 9 |
| U.S. heroes | 11 |
| U.S. high jumper Acuff | 22 |
| U.S. highway | 12 |
| U.S. highway with a ferry connection between Delaware and New Jersey | 68 |
| U.S. historian | 14 |
| U.S. historian George F. ___ | 28 |
| U.S. historian ___ Marshall | 27 |
| U.S. historian: 1840-1914 | 25 |
| U.S. holiday | 12 |
| U.S. holly | 10 |
| U.S. humane org. | 16 |
| U.S. humane org. since 1866 | 27 |
| U.S. humorist | 13 |
| U.S. humorist and family | 24 |
| U.S. humorist Finley Peter ___ | 30 |
| U.S. humorist-journalist: 1833-88 | 33 |
| U.S. humorist: 1850–96 | 29 |
| U.S. hwy | 8 |
| U.S. hwy. | 9 |
| U.S. hwy., e.g. | 15 |
| U.S. hwys., e.g. | 16 |
| U.S. hymnist | 12 |
| U.S. ICBM | 9 |
| U.S. illustrator | 16 |
| U.S. illustrator: 1877–1960 | 34 |
| U.S. immigrant's class | 26 |
| U.S. immigrant's subj. | 26 |
| U.S. immigrants' subj. | 26 |