career and his relationship with george washington. the site of washington's 1780 headquarters hosted this event. >> welcome. happy all of you are here and joining us today for this program. been heree not before, definitely after the lecture today, please stay and take a tour with our staff. before i introduce our guest speaker today, just a few rules or bits of information. we do have light refreshments for you in the kitchen. coffee, tea, cheese, crackers, cookies. please feel free to get up and take what you like. restrooms are in this building. you do not need to go to the visitor center. we have staff here today.