Papke Sisters: Mary Papke Krippner and Amelia Papke Robinson. Material: paper. Size: 3 1/2" x 5 1/4". Description: black and white oval portrait of two young women seated side by side; they are identified as Mary Papke Krippner and her sister Amelia Papke Robinson; the photo is mounted on heavy paste board. The photographer is Nygaard's Studio in Buffalo Lake, Minnesota.