Our Campaign around Gettysburg

OUR CAMPAIGN AROUND GETTYSBURG: BEING A MEMORIAL OF WHAT WAS ENDURED, SUFFERED AND ACCOMPLISHED BY THE TWENTY-THIRD REGIMENT (N. Y. S. N. G.,) AND OTHER REGIMENTS ASSOCIATED WITH THEM, IN THEIR PENNSYLVANIA AND MARYLAND CAMPAIGN, DURING THE SECOND REBEL INVASION OF THE LOYAL STATES IN JUNE–JULY, 1863.