R-L: Reb Faivel Raab, Rabbi Bark, a famous mohel in Philadelphia who may have had a shul on South Logan in Philly; the Rebbe Reb Moshe'le Lipshitz, Vyelepoler Rebbe of Philadelphia; and his son Reb Osher Zelig.
The Rebbe Reb Moshe'le Lipshitz of Philadelphia, טרינקט טיי; his son Reb Osher Zelig; and his son Reb Chaim Uri behind him. The pic seem to be in a shul in Philly in 1945. UPDATE 3/21/16. These pics seem to be part of a greater series of pictures at the White House in 1945. At least that's what it says there - at the website. But there seem to be many Jewish symbols in the background, so maybe they got mixed up with the actual WH pictures.
More about Reb Moshe'le Lipshitz, דער זעקסטער צדיק