Letter to Herbert S. Stone
He specifically names Franklin Head, a banker and patron of the arts ; Herbert's father Melville, founder of the Chicago Daily News and general manager of the Associated Press ; Eugene Field, a popular journalist and poet ; and Isaac E. Scott, a noted furniture designer. 
Conan Doyle drew a map with the path of the mailing from England to Chicago.
Chicago, H.S.S., U.S.
My Dear Stone
All happiness in '97 to you and to all friends in Chicago. I have not forgotten any of them, Franklin Head, your father — and also poor Scott and Field.
Many thanks for the charming little books.
Yours very truly,
A Conan Doyle.
Telegram. Stone. Chicago. Best whishes, Doyle.
A. C. D.