Bradbury, who died in 2019, founded Denver development firm Bradbury Cos. He and his wife Margaret also founded Bradbury Land and Cattle Co. in 1958, which still produces Red Angus cattle and quarter horses, along with irrigated corn and hay. Bradbury was inducted into the Colorado Agriculture Hall of Fame in 2016. Along with his sister, Lisa Beauprez, he inherited the South Comanche Ranch in Deer Trail from their father. The ranch consists of two separate, non-contiguous parcels in Elbert County. The property was originally listed for sale as one unit for $22 million in 2019.