...unds at Second Manassas. In September, assigned to the command of the brigade, he took part in the Maryland campaign, in which his men sustained the main losses of the cavalry division, fighting at Poolesville , Monocacy church, Sugar Loaf mountain, Burkittsville and Crampton's gap. At the latter pass of the South mountain, with about 800 men, dismounted, he made a gallant defense against the advance of a F...