Biography
J. R. Sparkman was a Working Class Union member from Oklahoma. J. R. Sparkman was sentenced to six years in prison and served in Leavenworth Penitentiary from October 6, 1917, to September 16, 1920.
The presidential-clemency table in the 1921 Senate amnesty hearings records a sentence imposed October 6, 1917: Six years. Commuted July 17, 1920 to four years with good-conduct allowances. A pardon, commutation, nominal expiration or parole eligibility is not itself evidence of the day of physical release; the imposed or reduced term is not a measured time served.
Amnesty and Pardon for Political Prisoners, 1921 Senate hearings, printed page 191.
Case
United States Penitentiary, Leavenworth
