This just in from Are Myklebust:

[I found this very interesting photo on a Charlie Chaplin website to day:

Members of United Artists at United Airport in Burbank, July 1933

L-R: Ed Finney, Hal Horne, Walt Disney, Al Lichtman, Mary Pickford, Charlie Chaplin and Joe Schenck.

The first four were heading to Chicago for a convention of film exhibitors.

Link to the blog posting for details and identification:

http://www.discoveringchaplin.com/2015/04/

Futher information about the four lesser known persons on the photo:

Edward Finney (1903 - 1983), film producer.
Hal Horne (1893 - 1955), publicity director for UA (and later a publisher).
Al Lichtman (1888 - 1958), businessman and film producer.
Joseph M. Schenck (1878 - 1961), Russian-born film studio executive.]