George W. Earle (& Son)
1874

Temporary installation.
From the 2006 OHS Organ Atlas:
Organ in the Grand Union. - Mr. Shelton, the father of the "boy organist," whose playing last season attracted so much attention, has at a large expense transported his organ from. New York [i.e. New Haven?] to Saratoga and is now busy putting it up in the dancing room of the Grand Union, where it will be played daily, for the enjoyment of visitors. It is said to be a fine instrument, "worthy of all praise," and will doubtless please thousands under the skilful hands of its youthful professor. It cannot fail to attract a large number of visitors, and while away an hour at mid day, when there is nothing else to attract. It will be ready in about ten days.
Source: "Locals in Brief," SDS 2, no. 2 (June 16, 1874), 3.

The June 29 issue provided additional details:
The Shelton Organ.-Considerable interest is manifested in the organ being put up in the Grand Union ball room by C.T. Shelton, esq., for his son Willie, the young organist. The maker, Mr. Earl[e], of New York, and his assistants, have been at work for two weeks and though it is not yet in complete order to gratify a few friends, the young rn.usician gave an extern.poraneous performance on Saturday afternoon, showing the variety of stops in the instrument as well as a nimble exhibition of the feet on the pedals alone . . . .
Source: "Shelton Organ," SDS 2, no. 13 (June 29, 1874), 3.

Further details appeared on July 3:
We had the pleasure of listening yesterday morning to some of the fine playing of the talented young organist, Willis C. Shelton, of New Haven, Conn., on the splendid organ made for him after a design of his own, when only sixteen years of age, by Geo. W. Earle of Riverhead, N.Y. Though it was not a public entertainment, quite a number of guests were present, who showed their delight and appreciation by enthusiastic applause. The organ will remain in the Grand Union Ball Room for the season.
Source: Willis Shelton," S 5, no. 251 (July 3, 1874), 2.