The story of Santa Gertrudis on the Yerba Buena Ranch Author D. Schaus Article Date August 1954 Journal Title Ariz Cattlelog
The Santa Gertrudis in Arizona Author V. B. Shoemaker Article Date August 1965 Journal Title Ariz Hwys
Santa Gertrudis on the Bard ranch Author R. Schaus Article Date January 1954 Journal Title Ariz Cattlelog