Gills farm, located between Mercer County, PA and Trumbull, OH. The house is gone now and this is the only known photograph of it.
The people on the porch are Maud Louella Clark Tarr and her children:
Clara Louella Tarr, wife of Thomas Jones
Lydia May Tarr, wife of Harold Gething
James Lawrence Tarr, husband of Tillie Betchie