According to Philo Adams Otis in his book The Chicago Symphony Orchestra: Its Organization, Growth, and Development, 1891–1924: “The first meeting for the incorporation of The Orchestral Association was held at the Chicago Club, December 17, 1890, and a board of five trustees elected. The first season (1891–92) of the Chicago Orchestra will consist of twenty concerts, each concert preceded by a public rehearsal, to be given at the Auditorium under the direction of Theodore Thomas. The talent engaged to make up the Chicago Orchestra is of the very finest order.”
Following Thomas’s unexpected death on January 4, 1905, Frederick Stock temporarily assumed the duties of music director as the Association began a search for a permanent replacement. But after a few months, it was evident that the more-than-capable successor to Thomas already had been in place. On April 11, the trustees met and unanimously elected Stock as the second music director, and the ensemble’s name was changed to the Theodore Thomas Orchestra. The program books for that season’s last concerts on April 14 and 15 were perhaps already printed, and the new name first appeared in October 1905.
Otis’s account of the twenty-second season completed the saga: “During the winter of 1912–13 [Association] President [Bryan] Lathrop interviewed or wrote to every member of the Board of Trustees, suggesting important reasons for changing the name ‘The Theodore Thomas Orchestra’ to ‘The Chicago Symphony Orchestra.’ Mr. Lathrop had always held to the belief that an institution depending largely on the public for its support suffers in bearing the name of its founder or benefactor, however honored or distinguished that name may be.”
The Board’s executive committee met on Friday, February 21, 1913, and adopted the following: “Resolved, that hereafter the official name of the Orchestra shall be The Chicago Symphony Orchestra, founded by Theodore Thomas . . . indissolubly connecting the name of our first great conductor with that of the Orchestra, and indicating to the world what the present name fails to do, that he was the founder of our Orchestra, and it will commemorate the great work which he did in America for the cause of good music. The new name will also associate the Orchestra with the city and people of Chicago, and insure for it their continued aid and support.” The following week, the cover of the program book made it official.