There is a letter in Col. John O'Neill's file about he being tasked to form this regiments of Federal POWs. Do you have that? If not I can send it to you by email.

Burke might be listed in Footnote's Unfiled Papers & Slips (National Archives). These are the left over items that should have been filed in the CSRs but were not. Footnote has about half of this large file uploaded now and the Bs are donw.

Greg Biggs