| U.S. Open units | 15 |
| U.S. Open winner Els | 20 |
| U.S. Open winner from Argentina | 31 |
| U.S. Open winner in 1997 | 24 |
| U.S. Open winner of 1994 and 1997 | 33 |
| U.S. Open winner, 1994 and 1997 | 31 |
| U.S. Open winner: 1934 | 22 |
| U.S. Open winner: 1961 | 22 |
| U.S. Open winner: 1976 | 22 |
| U.S. Open winner: 1977 | 22 |
| U.S. Open's ___ Stadium | 27 |
| U.S. Open, e.g. | 15 |
| U.S. operative | 14 |
| U.S. or British mil. award | 26 |
| U.S. or Can. money | 18 |
| U.S. or English poet | 20 |
| U.S. orator | 11 |
| U.S. orator and family | 22 |
| U.S. org. for minor traders | 27 |
| U.S. org. with over 39 million members | 38 |
| U.S. outlaw | 11 |
| U.S. output | 11 |
| U.S. output measure | 19 |
| U.S. overseas radio agcy. | 25 |
| U.S. Pacific island | 19 |
| U.S. Pacific territory | 22 |
| U.S. painter | 12 |
| U.S. painter Alex ___ | 21 |
| U.S. painter and family | 23 |
| U.S. painter George | 19 |
| U.S. painter John ___: 1871-1951 | 32 |
| U.S. painter Leon | 17 |
| U.S. painter Mark ___: 1890-1976 | 32 |
| U.S. painter Rembrandt | 22 |
| U.S. painter Robert | 19 |
| U.S. painter-etcher-illustrator | 31 |
| U.S. painter-sculptor: 1869-1953 | 32 |
| U.S. painter: 1844–1916 | 30 |
| U.S. painter: 1859–1940 | 30 |
| U.S. painter: 1871-1951 | 23 |
| U.S. painter: 1871–1951 | 30 |
| U.S. painting family | 20 |
| U.S. Park Service employee | 26 |
| U.S. patriot | 12 |
| U.S. patriotic display | 22 |
| U.S. penologist | 15 |
| U.S. pension org. | 17 |
| U.S. perennial herb | 19 |
| U.S. pet protector | 18 |
| U.S. petroleum center | 21 |
| U.S. pharmaceuticals overseer | 29 |
| U.S. pharmaceuticals regulator | 30 |
| U.S. philanthropist:1867–1933 | 36 |
| U.S. philosopher | 16 |
| U.S. philosopher-essayist | 25 |
| U.S. physicist | 14 |
| U.S. physicist Alfred ___ | 25 |
| U.S. pianist of 1800's | 26 |
| U.S. pint's 16 | 18 |
| U.S. pioneer | 12 |
| U.S. playwright | 15 |
| U.S. playwright Augustin | 24 |
| U.S. playwright James | 21 |
| U.S. playwright's family | 28 |
| U.S. playwright: 1904-61 | 24 |
| U.S. playwright: 1906–63 | 31 |
| U.S. plot? | 10 |
| U.S. poet | 9 |
| U.S. poet ("The Hired Man") | 37 |
| U.S. poet and baseball fan | 26 |
| U.S. poet and religious writer | 30 |
| U.S. poet Francis | 17 |
| U.S. poet laureate _____ Dove | 29 |
| U.S. poet Millay | 16 |
| U.S. poet who wrote "I Marry You" | 43 |
| U.S. poet who wrote "The Bridge" | 42 |
| U.S. poet, ___ Lazarus | 22 |
| U.S. poet-editor: 1877–1949 | 34 |
| U.S. poet-playwright: 1875–1950 | 38 |
| U.S. poet: 1889-1973 | 20 |
| U.S. poet: 1898–1943 | 27 |
| U.S. poet: 1899–1932 | 27 |
| U.S. political movement: 1891–1904 | 41 |
| U.S. political party | 20 |
| U.S. political scandal involving a fictional sheik | 50 |
| U.S. pollution controller | 25 |
| U.S. port | 9 |
| U.S. port of entry in Tex. | 26 |
| U.S. port, or its locale | 24 |
| U.S. portrait painter | 21 |
| U.S. portrayer of flappers | 26 |
| U.S. possession | 15 |
| U.S. possession since 1898 | 26 |
| U.S. Postmaster General: 1933-40 | 32 |
| U.S. power agcy. | 16 |
| U.S. power agency | 17 |
| U.S. power complex | 18 |
| U.S. power facility | 19 |
| U.S. power org. | 15 |
| U.S. Pres., militarily | 22 |