I found a family living in NYC in 1900 and I believe I am related to the wife Lizzie. The family appears as Thomas (b. 1865 in Ireland), Lizzie (b. 1872 in Ireland), married in 1890 and had two daughters.
Ancestry.com has transcribed the daughters names as Marcie, b. June 1894 in NY and Lillie b. May 1897 in NY. Marcie is not a typical Irish girl's name at that time and I think it is more likely Mamie or Marie.
I cannot find the family (or any family member) after this census.
Any help would be appreciated.