North Ann River, Virginia. Interior view of a Confederate redoubt commanding Chesterfield Bridge. Captured by the 2nd Corps under General Hancock, May 23, 1864 (Timothy O'Sullivan/ Library of Congress)

North Ann River, Virginia. Interior view of a Confederate redoubt commanding Chesterfield Bridge. Captured by the 2nd Corps under General Hancock, May 23, 1864 (Timothy O’Sullivan/ Library of Congress)