Young rocker Tennessee Thomas has brought this former one-person name over to the girls' side -- though the census roles of North Carolina in 1850 included a female named Tennessee and called Tincy. But Reese Witherspoon's using it for her baby son brought it back for the boys.

When playwright Thomas Lanier Williams adopted the pen name of Tennessee, he created a new possibility among American place-names, although it's admittedly a bit bulky in size. Reese Witherspoon brought it back into the spotlight when she chose it for her son.