I went back the next morning and took a shortcut to the library. The librarians are amazing. They show you how to research their collection of over 162 million items. I was wanting information about our Gilbert Family. There were 1,000's of Gilbert Family books. I choose one that I thought was relevant and placed my order. The book is then found and delivered to the main reading room. This process takes 45 minutes to an hour! While waiting for the first book I ordered 4 more. I was also able to check the old Catelogue Card system. This is the system I remember from my visits to the library in Toronto; hand written and some typed 3 x 5 cards in pullout drawers! I was able to find a few Gilbert Family books. Everything I wanted to take with me was put on my flash drive.
I have to go back! I was not able to visit the DARS (Daughters of the American Republic) Library and now I am familiar with the LOC and its tunnels. (They have a Dunkin Donut and Subway in the basement). Before I return I will do my homework. I will call each library to make sure they are open on the days I want to visit! The LOC requires a library card and you can start the process at home online.