Peter Abrams, as elderly man, seated wearing a double breasted great coat. Text on back of photo reads:" Mein Grossvater, P. [Cyrillic P] Abrams (Merla Dyck g.g. grandfather) (a Rempel or Dyck)"
Studio pose most likely Peter R. Abrams' mother Susanna Rempel, who married Peter Abrams first and later Isaac Loewen. Same as photo 11 just sharper image.