NOTE: I am adding this update on April 2, 2016. Since so much of my original inquiry is now badly outdated and incorrect I am deleting much of it. The man and woman in the photo I attached are not named Warchoł, as I originally believe because their portraits were pinned to an envelope fragment bearing that surname.
I recently came into contact with a cousin in Poland who is the grandson of a man who used to write to my grandmother. The woman in the photo below is Kunegunda (Czajkowicz) Martynkiewicz, and the man is her husband Franciszek Marynkiewicz, my cousin's great grandparents. She was born sometime between 1894 to 1902, give or take a year or two. She died on July 12, 1964, in Jasło, Poland. I do not know the dates of her husband's birth or death. The identities were confirmed by my cousin's parents.
I believe that Kunegunda was my grandmother's sister, but have no documentation to prove that assumption.
[BELOW IS AN EDITED VERSION OF MY ORIGINAL POST, DELETING INCORRECT INFORMATION.]
I have my grandmother's box of family photos, with many dozens from Poland, especially from the area of Bryły and Jasło. I probably have about 10 photos from the Warchoł family. There are Polish inscriptions on the back that I am translating with Google Translate. My grandmother, Suzanna (Czajkowicz) Magdziarz is referred to as "Aunt" (ciociu) in many of the photos. I know little about her family in Poland, with no information about any brothers or sisters she may have had. The given names in my Warchoł photos are: Franciszek, Zozia, and Maria. I also found two photos pinned to a parts of an envelope with a Polish stamp on it with the address for a person named Warchoł in Bryły, Poland.
Also, Dorota Warchoł is in my family tree as the mother-in-law of one of my grand uncles. Dorotka was the wife of Piotr Rączka, and they were the parents of Viola Rączka, who was married to my grand uncle, Wojciech "George" Magdziarz.
Given the number of photos I have of this family, they seem to have been very close relatives to my grandmother, but nobody in my family knows how. Neither my father for my uncle (both sons of Suzanna) had heard of the Warchoł name. My grandmother's mother's maiden name was Agata Rączka, and she was married to Martin Czajkowicz. If any of those names sound familiar to you please let me know. I would like to learn more about the Warchoł side of my family.