The name remained among the top 100 most popular names for American girls until 1961 .
Dorothy was a less common variant of Dorothea , until it became one of the top 10 most popular girl 's names in the United States between 1904 and 1940 .
The name remained among the top 100 most popular names for United States girls until 1961 .
Dorothy was a less common variant of Dorothea , until it became one of the top 10 most popular girl 's names in the United States between 1904 and 1940 .