Colonel Ulric Dahlgren A standing view CDV of Dahlgren as Captain. Second son of Admiral Dahlgren, Ulric held key staff positions under Generals Siegal and Hooker and was personally promoted to Colonel by Secretary of War Stanton for his "brilliant service" following the Gettysburg campaign where he was also wounded. Working "between the lines" Dahlgren and a small group of relentless troopers conducted covert operations mixed with spying, obtaining important information that materially assisted in the disruption of Lee's retreat from Pennsylvania. Dahlgren was later killed on March 3, 1864 during the disastrous raid on Richmond that bore his name. Back marked Henry Ulke, Washington