1) Reb Moshe'nyu of Boyan-Cracow; 2) R' Elimelech MM Landa, Strikover Rebbe; 3) Reb Shlome'le Eiger of Lublin; 4) Mazowecki, der Minsker Shochet. The photo was apparently taken in Vilna. #4 is based on the captions at the source, I have no knowledge either way. - Yad Vashem Photo
