http://www.carnegiehall.org/performancehistorysearch/
“Starting in spring 2013, Carnegie Hall is pleased to make its performance archive available directly to the public for online search for the first time. This exhaustively researched database contains records of 50,000 events, both musical and non-musical, that occurred in the public performance spaces of Carnegie Hall from its opening in 1891 to present. As of today, records spanning the period between 1891 and 1950 are now publicly available with more than 15,000 events covered. Additional data will be released on a regular basis.”