In an article by Hal Bookbinder he told of how American women could lose their citizenship between 1907 and 1922. This is somewhat related to the "Anchor" baby discussion of today in which some people feel that because someone is born here it does not automatically make them a U S Citizen.
Bookbinder's grandmother was born in 1895 in St. Louis, Missouri. She later married Edward Horwitz who had immigrated to the United States as a toddler but had never been naturalized. Since he was not an American citizen Bookbinder's grandmother lost her citizenship and in 1936 was naturalized back as a U S Citizen.
Bookbinder explained that between 1907 and 1922, American women who married foreign males lost their citizenship. And yet, foreign women who married Americans automatically became citizens.