Although it was written in 1921, it was not published until 1924, and at that time, the publication date was the copyright date. According to ASCAP's database, the rightsholders are:
Publishers/Administrators:
BALLENTINE STEPHEN MUSIC PUBL CO
% THE SONGWRITERS GUILD OF AMERICA
209 10TH AVE S STE 321
Nashville, TN, 37203
Tel. (615) 742-9945
LARRY SPIER MUSIC LLC
% MARK SPIER MEMORY LANE MUSIC GROUP
501 7TH AVE STE 512
NEW YORK, NY, 10018
Tel. (212) 460-8677
email: info@memorylanemusicgroup.com
WARNER BROS INC (WARNER BROS MUSIC DIV)
(WARNER BROS MUSIC DIV) % WARNER CHAPPELL MUSIC I
10585 SANTA MONICA BLVD
LOS ANGELES, CA, 90025
Tel. (310) 441-8600
The copyright holder is EMI Unart, but most uses can be licensed through Alfred.
Warner Chappell.
Twentieth Century-Fox.
Nobody will tell me
Nobody owns copyright of music written two hundred years ago. The copyright of anything published before 1923 is irrelevant as it has expired. Copyright in an unpublished work would also expire according to the laws of the country in which it was created. For comparison, in the USA, an old work previously unpublished but recently issued would have a copyright that does not expire until 2047.
Nobody owns the copyright of a single word. Perhaps you mean trademark.
the coca cola company owns the copyright
A minor owns the copyright on any works they create.
Universal.
Universal Polygram controls the song, and certain performances and recordings will have their own protections.
Word Music.
Rankin/Bass.
Rondor Music.
Paramount.
There are 24 different copyright-protected items by that name.
The phrase "copyright obtained" doesn't give any indication of who copyright might be assigned to.
who owns the baja or lower California is Mexico