Mary Surratt and Lewis Powell are arrested in a late night War Department raid on Surratt's boarding house
In a late night visit, War Department officials arrested Mary Surratt and three other women in her boarding house. By happenstance, Lewis Powell returned to the house while the investigators were there, having been in hiding since his attack on Secretary of State Seward, and was also arrested. Powell and Mary Surratt were imprisoned at the Washington Navy Yard, tried in May, and both executed on July 7, 1865 for their role in the murder plot. (By John Osborne)
Source Citation
Clara E. Laughlin, The Death of Lincoln: The Story of Booth's Plot, His Deed and the Penalty (New York: Doubleday, Page and Company, 1909), 161-163.