I'm looking for information on a Guy or Ruth Kaufmann (could have been Kaufman or Coffman) who were probably born in about 1893. They may have been husband and wife but more likely brother and sister.

They were friends of a great aunt Cornelia Ellen Lines, of Curwensville, Clearfield Co., PA, and I have a couple of pictures of them together while visiting in Altoona, PA in 1910. See the attached photos.

The first attached photo is my great aunt with Guy Kaufmann and the second is with Ruth Kaufmann (standing).

Any help would be greatly appreciated!