Longstreet Had Many More than 15,000 Men Available for Pickett's Charge

Longstreet had available for Pickett's Charge nearly the 30,000 men Old Pete thought necessary to ensure success.  See Richard Rollins, “The Second Wave of Pickett’s Charge,” Gettysburg Magazine, No. 18, July 1998, 104-110.

These troops included those of Mahone's Brigade of Anderson's Division, which included the 12th Virginia Infantry, the Petersburg Regiment.  George S. Bernard, “The Gettysburg Campaign;” in Hampton Newsome, John Horn and John G. Selby, eds., Civil War Talks: Further Reminiscences of George S. Bernard and His Fellow Veterans (The University Press of Virginia, Charlottesville, 2012), 133-134; George Morley Vickers, ed., Under Both Flags:  A Panorama of the Great Civil War, As represented in Story, Anecdote, Adventure, and the Romance of Reality, Written by Both Sides; the Men and Women Who Created the Greatest Epoch in our Nation’s History (DesMoines:  Mutual Books Concern, 1896), ed., 70; John Horn, The Petersburg Regiment in the Civil War, 1859-1865, A History of the 12th Virginia Infantry from John Brown's Hanging to Appomattox (El Dorado, CA:  Savas Beatie, 2019), 185 n. 79.  

Had the additional men been committed, Pickett's Charge ought to have succeeded--at least to some degree.  Ibid., 188, n. 93.