In the mid-nineteenth century, Maryland Avenue was straddling two worlds: the old world of pre-Revolutionary grand estates and the new world of commercial and residential construction. On this scavenger hunt, you will see the avenue through the eyes of the Loockerman family who lived at the Hammond-Harwood House. The house was begun in 1774 for Matthias Hammond who never lived there. In 1811, the Loockermans moved into the house. Their eldest daughter married William Harwood. The Loockerman granddaughter, Hester Harwood, was the last private owner before it became a museum.