Long, E. B. The Civil War Day by Day: An Almanac, 1861–1865. Garden City, NY: Doubleday, 1971. OCLC68283123. Page 663 gives the number of Union troops engaged as 63,000. Sheridan's task force, including the cavalry and the V Corps took no significant part in the actions on April 2. Hess, Earl J. In the Trenches at Petersburg: Field Fortifications & Confederate Defeat. Chapel Hill: University of North Carolina Press, 2009. ISBN978-0-8078-3282-0. p. 278.