Katherine was a Top 50 American baby girl name from 1977 to 2008
Vanessa was a Top 100 American girl’s name from 1977 to 2009, ranking highest in 1988 (No. 41)
Tiffany was a Top 50 American baby girl between 1974 and 1995, ranking highest in 1982 and 1988 at No. 13
Theresa was a Top 50 American baby girl between 1953 and 1969, ranking highest at No. 32 in 1956
Theodosia was a Top 1000 USA girls name in the last two decades of 19th century
Theodora made the Top 1000 most popular USA girls names from 1880 through 1956, peaking at No. 509 in 1937.
Thelma was a Top 100 American baby girl between 1898 and 1939. Its peak came in 1910 at No. 25
Thalia can be pronounced with 2 or 3 syllables, with the h or without it and with a long or short i.
Tessa made the Top 200 most popular American baby girl names once — in 2007, at No. 190
Tess first appeared as an independent given name in the Top 1000 American baby girl names in 1983