What were their badges of rank?
From the 1861 Uniform Regulations for the U.S. Army at http://www.members.tripod.com/~howardlanham/unireg.htm Buttons 1443. For a Major-General–two rows of buttons on the breast, nine in each row, placed by threes; the distance between each row, five and one-half inches at the top, and three and one-half inches at the bottom; standing-up collar, to rise no higher than to permit the chin to turn freely over it, to hook in front at the bottom, and slope thence up and backward at an angle of thirty degrees on each side; cuffs two and one-half inches deep to go around the sleeves parallel with the lower edge, and to button with three small buttons at the under seam; pockets in the folds of the skirts, with one button at the hip, and one at the end of each pocket, making four buttons on the back and skirt of the coat, the hip button to range with the lowest buttons on the breast; collar and cuffs to be of dark blue velvet; lining of the coat black. 1444. For a Brigadier-General –the same
