December 1927 blackboard, Southern California, 1928

Photograph of blackboard from December 1927, Southern California, 1928. "Subject: Dec[ember] 1927 blackboard

19282101DW1928010721DW192801072101BlackboardsCampbell W. RossSteeleStrockThorsonKjergardMouleAbelCriderHayesGodfreyGlassHoffmanSucklinMcCourtEmersonLeeZane