Dave Hirt is quite correct. The man in the foreground in Lupia's cropped photo is Elmer Sears. The man in profile, behind him, is Stephen K. Nagy.

There is quite a lot more that could be written about Nagy. Nagy was involved in a remarkably large number of dubious numismatic transactions in the early twentieth century - 1913 nickels, territorial gold fakes (Massachusetts and California , USAOG, Templeton Reid). Pieces from his estate appeared in the 1958 ANA Auction conducted by Abe Kosoff. Eric Newman tried to get the dodgy pieces from the Nagy estate transferred to the Smithsonian; more details about that will be found in his correspondence.

Regarding Nagy, there are a number of letters between John Ford and Eric Newman, c. 1958, in which Ford is attempting to get the Nagy estate placed in the Smithsonian. He wants Newman to donate money for it, and Newman is suspicious that Ford will siphon off some of the material. Newman ends up not funding the project. The most interesting document in the group is an inventory of the material, which would be interesting to compare to the Kosoff sale.

If I recall correctly, a group of drawings from George T. Morgan were part of this estate, went to Stack’s, and formed the basis for Karen Lee’s book on the subject, when they were eventually donated to SI. There were many other things in the estate.

This photograph also appears in Mehl's Numismatic Monthly, December 1909, page 194, and in The Elder Magazine, January 1910, page 14.

The date of the photograph can be determined from the dates given in Mehl's and Elder's magazines; and also from the fact that John H. Clapp appears, since he did not attend many meetings (he lived in Washington, DC).

Seated at the left of the front table, left to right: Wayte Raymond (glasses and cigar), Victor D. Brenner (bearded), Elmer Sears, Stephen K. Nagy, Bauman L. Belden (bearded, appears to have a water jug on his head)

Dave Hirt seems to be right that the cropped New York Numismatic Club photo originally posted by me is probably not zoomed in on Stephen Nagy but Elmer Sears. I found the above photo of Sears in the Boston Post, August 21, 1921. I replaced the photo with the other diner sitting next to him. I misread Dave Hirt's original notice in  The E-Sylum or else I would have had it right. Thanks to Dave we have it!

I did a Google search and found this interesting labeled 1908 ANA Convention photo posted by "leeg" at the Collectors Society forum. S.K. Nagy is listed as #18 and Elmer S. Sears as #20 in the photo. I know nothing more about this - just happened to come across it in my search.