Halloween Greeting - Who? Who? Don't you wish you knew?

Front:
THIEF? BEGGAR MAN ? DOCTOR? Hallowe'en Greeting Who? Who? Ellen ff. Clapsaddle POOR MAN? LAWYER? Don't you wish you knew? RICH MAN ? MERCHANT ? CHIEF?

Back:
International Art Publ. Co. 25 Series No 4439 LA.P.COM RADE MARK NEW-YORK BERLIN FOR CORRESPONDENCE 0 30 06 5.0 DM 19/2013 ? Oct 20 Dear major; All's well ins DA Sion Falls but how is it Flandrean? I wish I knew, but I keep on wishing the owl would put in a good word for your old friend and schoolmate "Llevere" PLA Miss Mae Jackson Flandreau S.L Yo C. W. Bradish