This photo is the family of Moshe S. Ben-Meir, who was the editor of the Goniadz Yiskor book. Click to see a larger version.
Standing left to right: Kalman Treszczanski, Chava Treszczanski-Perla, Leiser Treszczanski, Moshe Ben-Meir (nee Idel Treszczanski)
Seated at left is their mother Chaja Bejla Finkelstein-Treszczanski. Seated at right is their father Meir Treszczanski