Thornton doesn`t appear in 2007`s top-1000 name list.
The last time Thornton appeared in the top-1000 was 78 years ago, in 1930. It ranked #986 in that year. . 1880 was a `top year` for the name Thornton. (Based on 128 years of name history) In that year it ranked #562. Our records go back to 1880

Year	Rank	Rank
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1940	---
1930	986
1920	815
1910	675
1900	832
1890	987
1880	562