Three portraits

Three more Real Photo postcards, possibly from western Pennsylvania. The one above has the following inscription on the reverse of the card:

Mother Moser [or possibly "Moses"]
Mother's Sister
Mariah Knotts
& Son & his child

This conceivably could be the Mariah Knotts who was born in 1836 and died in Franklin, Pennsylvania in 1915. The Cyko cardstock on which the image is printed was manufactured from 1904 into the 1920s. The other two cards, which bear no inscriptions, are on Azo stock that is roughly contemporary.