In Alfred Dolge's book Piano and Their Makers the Valley Gem company is mentioned briefly. Only the name is mentioned. "With the growth of the business the necessity of manufacturing became more and more apparent, and in 1889 the Hamilton Organ Company was organized as a subsidiary concern for the making of organs-the Baldwin Piano Company, Valley Gem Piano Company and the Ellington Piano Company soon following. That's not much but is associates Valley Gem with Baldwin. John LaBorn, RPT Chicago Chapter
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