I have 2 Hattie Nagle's in my family tree. One, Hattie Nagle was born in 1881 and an aunt to mother in law, Ann Louise Nagle. This Hattie's father was Hentry Nagle who married Anna E. Hartman. Hattie married Preston Baker and had a child names Jerome Baker. My mother in law remembers these people well. They lived in the Allentown, Lehigh, PA area. (Not very far from MD at all).
The other Hattie Nagle was the daughter of albert Nagle b. 1857 and Lizzie Eckert married 1879. (Allentown, Lehigh, PA area). I have lots more information since it is my mother in law's line. Rita Rhoads Maury