1st (Buchel's) Cavalry Regiment was organized at Carreicetas Lake on the Rio Grande River
during the early spring of 1862. It was formed by consolidating Yager's 3rd and Taylor's 8th
Texas Cavalry Battalions. The men were from San Antonio, Fredericksburg, Marshall, and
Belton, and Jackson and DeWitt counties. The unit was attached to H.Bee's and Bagby's
Brigade, Trans-Mississippi Department, fought at Mansfield and Pleasant Hill, then skirmished in
Louisiana. It was included in the surrender on June 2, 1865. The field officerswere Colonel
Augustus Buchel, Lieutenant Colonel William O. Yager, and Major Robert A. Myers.