Selected U.S. Naturalization Records – Original Documents, 1790-1974 (World Archives Project), District Court (Rolls 049-061) Atlanta, Petitions for Naturalization 1912-1932 (Roll 053) Petitions and Records, Jan 1923-Jan 1925.
Ancestry.com has been gradually updating its database of US Naturalization Records. Last time I looked, Nell wasn’t there, but she is now. I still can’t find her in the 1920 Census, but hopefully she’ll turn up eventually. For now, this is pretty cool!