The Society of the Cincinnati

The Society of the Cincinnati is the current owner of Anderson House. There are in fact bedrooms on the third floor of the house that members can stay in when the visit Washington. Here's a little more about the society:

The Society of the Cincinnati is the nation's oldest patriotic organization, founded in 1783 by officers of the Continental Army and their French counterparts who served together in the American Revolution. Its mission is to promote knowledge and appreciation of the achievement of American independence and to foster fellowship among its members. Now a nonprofit educational organization devoted to the principles and ideals of its founders, the modern Society maintains its headquarters, library, and museum at Anderson House in Washington, D.C.

The first president was George Washington. Alexander Hamilton was a president too.