...s estimated that 25,000 were necessary to properly man these works. General Beauregard's number on the morning of the 16th was, he states, 10,000 men of all arms. Hancock and Smith were joined by Burnside 's corps about noon on the 16th, making an aggregate force of over 53,000 men. Warren's corps, 17,000 strong, reached Petersburg that night. Hancock, in command until General Meade's arrival, assaul...