Robert Conrad and Ross Martin reprise their roles as Secret Service agents of the 1890s.
1 October 1938, Los Angeles, California, USA
12 May 1914, Buffalo, New York, USA
11 November 1925, Dayton, Ohio, USA
10 April 1915, Detroit, Michigan, USA
13 December 1914, New York City, New York, USA
14 April 1933, Albany, New York, USA
5 March 1929, Fort Pierre, South Dakota, USA
24 September 1941, Buenos Aires, Argentina
1 March 1935, Chicago, Illinois, USA
7 May 1906, Gossau, Switzerland
1 June 1940, New York City, New York, USA
7 March 1909, Boston, Massachusetts, USA
30 January 1932, Chicago, Illinois, USA
12 July 1944, Bakersfield, California, USA
28 August 1960, London, England, UK
28 May 1949, Frankfurt am Main, Hesse, Germany
20 October 1927, Brooklyn, New York City, New York, USA
9 April 1935, Chicago, Illinois, USA
27 September 1947, New York City, New York, USA
6 October 1922, California, USA
3 February 1938, San Diego, California, USA
26 September 1914, San Francisco, California, USA
22 March 1920, Gródek Jagiellonski, Lwowskie, Poland [now Horodok, Lviv Oblast, Ukraine]

