Rosemary Lawn
 Rosemary Lawn is a historic home and farm complex located at Welcome Charles County Maryland United States. It is a rambling two-story frame farmhouse. The home is believed to be a largely rebuilt version of a house of similar size and configuration that was built between 1844 and 1847 when it was part of the estate of Barnes Compton inherited from his mother Mary Key (Barnes) Compton (b. 1804 St. Mary's Co. MD -d. 17 JUL 1834 Charles Co. MD).