Tel Aviv Championship, 1945 -- Help with Identifying Players

Source: See below

The above photograph, as is noted on the back, is that of the Tel Aviv Championship, 1945. It was forwarded to us by Ami Barav, the son of the late Israel Rabinovich-Barav. With Ami Barav's aid, as well as Hon's Ptichot Be'Sachmat and other sources, we have identified the persons in the photo as follows:

Standing, r. to l. : Rabinovich-Barav, Gruengard, Dobkin(?), Yosha, Smiltiner, Hon, unknown, Vogel(?), Wolfinger. Sitting, r. to l.: Aloni, Blass, Unknown, Mendelbaum(?), Porat, Unknown.

We are quite certain about the identity of some of the players. We are far less certain about three others, hence the question marks, and not sure at all about three of them, the 'unknowns'. The one participant not named here even tentatively is Gruenberg.

Note that Kniazer, one of the participants, is certainly not in the picture. As there are fifteen people in the picture and at most 13 of them are players, at least two others are non-participants, e.g., organizers.

Can any reader help with a more certain identification?