Brian Cooper, the youngest of the three Cooper children, was born in 1859. He was very young when his mother, Charlotte Cooper, died of a rattlesnake bite. He welcomed Michaela warmly and was the first to refer to her as "Ma." Brian has a true love of animals, and has had two dogs, Pup, and Fifi. Pup was given to him by Sully for Christmas, and Fifi was a gift from Grandma Quinn. Pup acquired rabies, and after he bit Ingrid he had to be put down. Fifi, intended to replace Pup, ended up as a gift for Brian's first girlfriend, Sara. Brian has varied interests including the ways of the Cheyenne, painting, baseball, and writing. He has a close relationship with Loren Bray, who would like Brian to work for him. Instead, he has become a reporter for Dorothy's Gazette.