Lytle School Students, Sandy Lake, Mercer Co., PA.
http://www3.familyoldphotos.com/photo/schools-reagle/8021/lytle-school-sandy-lake-mercer-co-pa-1910Names listed on back: Mildred Egbert, Teacher, Edson M., Hamy W., Lavisa O., Karl K., Joe A., Vera S., Lawrence L., Robert A. Also Esther, Helen and Sam McGarr.
You may recognize some of these students.