Isaac MurphyThe rise and fall of one of America's first Black sports celebrities "Deeply and impressively researched. . . . Ms. Mooney pieces together a narrative with an arc so tight and clean that it's a wonder it actually happened. . . . It reads, in other words, like a novel, and that is because the author brought not just rigor, but craft."Max Watman, Wall Street Journal Isaac Murphy, born enslaved in 1861, still reigns as one of the greatest jockeys in