Brigham Young, Jr.
Brigham Young Jr. served as president of the Quorum of the Twelve Apostles of The Church of Jesus Christ of Latterday Saints from 1899 until his death. His tenure was interrupted for one week in 1901 when Joseph F. Smith was the president of the Quorum.
Young was born in Kirtland, Ohio, the son of Brigham Young and Mary Ann Angell. Youngs twin sister, Mary, died at age seven from the effects of injuries received at age two in a wagon accident. At age twelve, Young drove an ox cart along the Mormon Trail, reaching Salt Lake City in 1848. Young served as a guard and scout in the following years, operating in Salt Lake Valley and the surrounding canyons.
Source: Wikipedia