Julia Ann Taylor-24399. In 1850 census she is in household of Penalton Taylor-24385, Living in Granger Co., Granger, Tennessee. Born in Tennessee, age 13.
Julia Ann Taylor-57327. In 1850 census she is in household of John Taylor-57328, living in Alamance Co., Alamance, North Carolina. Born in North Carolina, age 16.
In 1860 census the 2 Julia Ann Taylors are not listed with their parents. A Julia Ann is listed in household of Marvel Derrick. Find a Grave #71029997 (grave of Julia Ann Taylor, wife of Marvel Derrick) reads: Born 05 Sept 1834, Died 01 April 1906. You will see that someone thinks she may have died in 1904. It was Julia Ann Wininger Derrick, #71063741 that died in 1904.
Note that Taylor-24399 and Taylor-57327 have the same birth and death dates and North Carolina as birth location on their profile page. The 1850 census shows which is correct.