Here's a picture of Cleveland's League Park. As you can see by the right field fence, it does indeed look like the picture was taken from the third base dugout. Along with the fact that Harry Lord was the Sox third baseman, maybe we can see who might have made it to third in any of those games. I know it's a long shot, but if somebody has access to box scores from 1911, here the days the Sox played in Cleveland:
May 3-6
June 28 - July 1 (doubleheader on 28th)
Sept 4 (doubleheader, although I'm not sure this was in Cleveland since they played the previous few games in Chicago - may be a mistake in my source)
Anyway, it might be worth a look...
Take Care,
Geno