Beethoven's legacy was profound. He served as a model for countless composers, including Schubert, Mendelssohn, Brahms, Wagner, and Mahler. Aspects of his style were codified in textbooks, and his life and works became the subject of a vast scholarly literature. He inspired painters and sculptors, and numerous societies and festivals were named in his honor.
In 1870, New Haven honored Beethoven's 100th birthday with a four-day festival. One of the conductors was Gustave Jacob Stoeckel, the first music professor at Yale. Stoeckel Hall, now the home of the Department of Music, is named after him. This document is from the Stoeckel Papers. You can see a larger version here.