Dortha doesn`t appear in 2007`s top-1000 name list.
The last time Dortha appeared in the top-1000 was 68 years ago, in 1940. It ranked #752 in that year. . 1920 was a `top year` for the name Dortha. (Based on 128 years of name history) In that year it ranked #425. The last time Dortha appeared among the most common names was in 1900. Our records go back to 1880

Year	Rank	Rank
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1940	752
1930	472
1920	425
1910	699
1900	983
1890	---
1880	---