The John Shaw House, depicted in the Maryland Historical Trust logo, served as the Trust's headquarters from 1975 until 1991. The gambrel-roofed building, located at 21 State Circle in Annapolis, was constructed in the years between 1720 and 1725 for butcher Cornelius Brooksby. That modest structure consisted of a two-room plan set upon a raised basement. In 1784, established cabinetmaker John Shaw purchased the property, and enlarged the dwelling to include three rooms on each story. The wood frame Georgian house, which remained in the Shaw family for 123 years, is the oldest structure extant on State Circle. Today, the Shaw House stands as a seven-bay-long, one-and-a-half-story gambrel-roofed building featuring a distinctive widow's walk and a full-width front porch. It is owned by the State of Maryland and currently houses offices for some of the governor's staff.