Thompson succeeded James H. Burke as song leader under Albert B. Simpson at the New York Gospel Tabernacle about 1890.
We speculate he might be the George Tabor Thompson (1835–1915) buried in Forest Hill Cemetery, Eau Claire, Wisconsin. There was reportedly a George Tabor Thompson who ran a drugstore in Eau Claire (1871 to circa 1910), and whose wife was involved with church music.
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