Geselischaft Harmonic, NYC

Fears' Day By Day treats this as if it were a location.  That does not appear to be so.  Google does not come up with a discrete entry but there is mention of the German Society of the City of New York (Deutsche Gesellschaft).  Mark Twain spoke to this group on three occasions, as listed in DBD: January 18, 19 and 26 of 1878.