Gus enlisted in the Forty-fourth Infantry Regiment at Selma, Alabama, but was later transferred to Hood's Texas Brigade, where he served as the regiment's bandmaster. On the evening of August 28, 1862 the unit was marching through Thoroughfare Gap to the east slopes of the Bull Run Mountains, where they could see the flashes of Jackson's guns engaged at Groveton, only ten miles east. As they bed down for the night, a group of officers accidentally kicked over an empty oat barrel and sent it hurtling down the slope toward the Texas Brigade's bivouac. Frightened by the noise, a grey pack horse dashed up the hillside, still laden with frying pans, tin cups and other kitchen utensils. Aroused from their deep sleep, the veteran Texans panicked and scrambled several hundred yards downhill, tearing through a well-built fence in the process. Regaining their composure, the Texans laughed off their folly and Gus put the escapade to song. Originally called The Old Gray Mare (Came Tearing Out of the Wilderness), it became the brigade's marching song.
When the war was over, the couple traveled throughout the South and then by riverboat with the Bailey Concert Company. Bailey's circus was a success, and at its peak claimed 31 wagons and about 200 animals, including camels and elephants. The circus primarily toured small towns and became well known throughout the state for being free of the cheating and con games typical of other carnivals, as well as it's practice of giving free tickets to veterans, both Union and Confederate.
Gus became chronically ill, and, permanently weakened, was forced to retire from the day-to-day operations. He stayed at the circus' winter grounds in Blum while Mollie took over the business entirely. He succumbed to his illness on November 10, 1900 and buried with full military honors in Houston's Evergreen Cemetery.
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