Nellie, or possibly Nettie, might have had the Yiddish name, Necha. (Not the greatest homonym for a current Hebrew word that means handicapped.)
My mother-in-law was a Nettie/Necha so I know of what I write. Nad that also is a variation of the Nechama as others have replied.
Beverly Hills, CA
Researching: GOLDMAN, STEINER, LANGER, GLUECKSMAN, STOTTER in various parts of Galicia, Poland
(Nowy Targ, Nowy Sanz, Wachsmund, Dembno, Lapuszna, Krakow, Ochotnica) who migrated into Kezmarok or
nearby towns in northern Slovakia and Czech Republic (i.e., those who lived/had businesses in Moravska Ostrava);
GOLDSTEIN in Sena or Szina, Szkaros and Kosice, Slovakia; Tolcsva and Tokaj, Hungary.