I DEFINITELY have a Josephine Horan and Nellie Horan in my tree from Waterbury, CT. Do I understand you that two people in your family married Horans in different generations? If you kindly have a tree I can look at please email me. Thank you.
Maurice Horan and Anna Horan (nee Rice) had Josephine, Catherine, Mary, Helen, Maurice Jr. and George. Not sure where Nellie fits in here but I have her photograph.
I have read in other people's trees that Maurice Horan Sr. was the son of Michael Horan and Catherine Horan (nee Hungerville). They might have had one other child besides Maurice, named Mary.