Jack Dorsey Jack Dorsey Jack Patrick Dorsey (born November 19, 1976) is an American computer programmer and Internet entrepreneur who is co-founder and CEO of Twitter, and founder and CEO of Square, a mobile payments company. Dorsey was born and raised in St. Louis, Missouri, the son of Marcia (née Smith) and Tim Dorsey. He is of English, Irish and Italian descent. His father worked for a company that developed mass spectrometers and his mother was a homemaker. He was raised Catholic, and his uncle is a Catholic priest in Cincinnati. He attended the Catholic Bishop DuBourg High School. In his younger
Glenn Dorsey he started all 16 games and had 69 tackles and two sacks. In 2011, Dorsey had 62 tackles, but no sacks. On March 13, 2013, Dorsey signed a two-year deal with the San Francisco 49ers. Dorsey was expected to be a reserve, but following the injury to starting nose tackle Ian Williams in week two, Dorsey took over the starting job. Dorsey signed a two-year extension with San Francisco on August 19, 2014. On November 25, 2015, Dorsey was placed on injured reserve with a torn ACL, ending his season. He promoted animal protection with PETA. Glenn Dorsey Glenn Jamon