"Secret Service agents, Whitehouse, Va." Between 1861-65. Summary: Stereograph showing group of seven men seated on a rock by a river. The five men in front are identified on verso as: 1) A. Harper Caldwell, Chief Tel. Operator, Army Headquarters; 2) Albert Linde, Perminsky Indian Scout from near Whitehouse, Virginia; 3) Jessie Brunell, Secret Service Tel. Operator at Army Headquarters; 4) Harry Thomas, Secret Service Operator; 5) G.H. Thiel, Secret Service Operative.
