Volume XII of the Naval Official Records covers the North Atlantic Blockading Squadron, which had a presence on the James River during the Siege of Petersburg, from February 2 to August 3, 1865. This volume is only one part, and contains reports and correspondence of the leaders of various ships and commands on both sides. Early on I’ve made the decision to only post selected reports and correspondence from the Naval ORs rather than everything pertaining to the Siege of Petersburg. I made this decision because I deemed other items as deserving of more attention for the present time. At some point, I may go back and fill in all of the information.