Detective (1843–1919) hand picked by Allen Pinkerton to infiltrate the Molly Maguires during their reign of terror in the 1870s. His testimony at the trials during 1876–77, led to the conviction and execution of eleven of the nineteen men eventually hanged, and prison sentences for another fifty. Upon his death, the New York Times referred to McParland as one of the leading detectives of the world. DS, signed “James McParland, Supt.,” one page both sides, 8 x 11, April 22, 1897. Receipt for payment by the Union Pacific System to the Pinkerton National Detective Agency for $135.35, for “services, subsistence and other expenses of Operatives, Colorado Division.” Signed at the conclusion by McParland as superintendent of the Pinkerton National Detective Agency and various Union Pacific System officials. Light overall toning, staple holes to the upper left corner, and various original office stamps and notations, otherwise fine condition. RR Auction COA.