I am currently researching my husband's family. The Falkers seem to have been in the Eastern Pennsylvania area since the 1850's. Most family members seem to have lived in Schuylkill and Northumberland Counties. The Kovals immigrated from Poland to the Philadelphia area around 1910.
My family includes the Thurstons, Wolcotts, Gourleys, and Curtis' of western PA, as well as the Wilsons and Menzies of northern NJ.