| First name in cookery | 21 |
| First name in cookbook writing | 30 |
| First name in conservatism | 26 |
| First name in consecutive baseball games played | 47 |
| First name in conducting | 24 |
| First name in Communism | 23 |
| First name in comics villainy | 29 |
| First name in comics villains | 29 |
| First name in comic book villains | 33 |
| First name in comedy? | 21 |
| First name in comedy and conga lines | 36 |
| First name in comedy | 20 |
| First name in comedic brothers | 30 |
| First name in colonial courtship | 32 |
| First name in college football coaching legends | 47 |
| First name in college football coaching | 39 |
| First name in college football | 30 |
| First name in college coaching legends | 38 |
| First name in college coaching | 30 |
| First name in coaching | 22 |
| First name in clowns | 20 |
| First name in clocks | 20 |
| First name in clockdom | 22 |
| First name in classical music | 29 |
| First name in classic TV newscasters | 36 |
| First name in classic TV husbands | 33 |
| First name in classic cars | 26 |
| First name in civil rights | 26 |
| First name in circumnavigation | 30 |
| First name in choreography | 26 |
| First name in chillers | 22 |
| First name in children's literature | 39 |
| First name in childcare writing | 31 |
| First name in Chicago politics | 30 |
| First name in chairmen | 22 |
| First name in cereal | 20 |
| First name in casino ownership | 30 |
| First name in case fiction | 26 |
| First name in cartoon skunks | 28 |
| First name in cars | 18 |
| First name in Carolina politics | 31 |
| First name in car-jumping | 25 |
| First name in Canadian pop stars | 32 |
| First name in Canadian pop music | 32 |
| First name in Canadian divas | 28 |
| First name in California politics | 33 |
| First name in calculus lore | 27 |
| First name in calculus | 22 |
| First name in cakes | 19 |
| First name in Bugs chasers? | 27 |
| First name in Brooklyn baseball | 31 |
| First name in British sports cars | 33 |
| First name in British letters | 29 |
| First name in bridge | 20 |
| First name in brewing | 21 |
| First name in boxing | 20 |
| First name in book clubs | 24 |
| First name in Bonds | 19 |
| First name in Bond portrayers | 29 |
| First name in bombshells | 24 |
| First name in bombers | 21 |
| First name in bologna | 21 |
| First name in blues | 19 |
| First name in black-and-white photography | 41 |
| First name in biking | 20 |
| First name in bike stunts | 25 |
| First name in big noses | 23 |
| First name in bicycling | 23 |
| First name in bee movies | 24 |
| First name in beauty products | 29 |
| First name in beauty | 20 |
| First name in bass | 18 |
| First name in basketball | 24 |
| First name in baseball ironmen | 30 |
| First name in baseball | 22 |
| First name in Baltimore baseball history | 40 |
| First name in Baltimore baseball | 32 |
| First name in baking | 20 |
| First name in bakery products | 29 |
| First name in b-o-l-o-g-n-a | 27 |
| First name in B-29s | 19 |
| First name in B-29 lore | 23 |
| First name in B-29 history | 26 |
| First name in aviatrices | 24 |
| First name in aviation history | 30 |
| First name in aviation | 22 |
| First name in auto racing | 25 |
| First name in art | 17 |
| First name in architecture | 26 |
| First name in architectural legend | 34 |
| First name in architects | 24 |
| First name in anti-aging products | 33 |
| First name in animation | 23 |
| First name in animals | 21 |
| First name in angling | 21 |
| First name in anecdotes | 23 |
| First name in an Irving title | 29 |
| First name in American poetry | 29 |
| First name in American fashion | 30 |
| First name in all-time homers | 29 |