Don Carlos Young
Joseph Don Carlos Young was an American architect and the Church Architect for The Church of Jesus Christ of Latterday Saints from 1887 until 1893. In 1893, the office of Church Architect was dissolved , Young thereafter practiced privately with the LDS Church as a frequent client. Young practiced as an architect, landscape architect and designer from 1879 to circa 1935. A preponderance of his work centered on church commissions, or commissions offered him by extended Young family members, or higher echelon church friends.
Young was born in Salt Lake City, Utah Territory, the son of Brigham Young and Emily Dow Partridge . He studied at the University of Deseret and then the Rensselaer Polytechnic Institute at Troy, New York. At Rensselaer he studied civil engineering and architecture.
Source: Wikipedia