John Edward 'Jed' York (born c. 1980) is an American sports executive, the son of Marie Denise DeBartolo York and John York, and the CEO (and formerly President) of the San Francisco 49ers. He is also the nephew of former San Francisco 49ers owner Edward J. DeBartolo Jr..

Born and raised in Youngstown, Ohio, Jed attended St. Charles elementary school and Cardinal Mooney High School (Youngstown, Ohio). While in high school he was a baseball team captain and the senior class president. He also graduated from the University of Notre Dame earning a Bachelor of Arts in Finance and History.

York began his working days as a financial analyst for Guggenheim Partners at their New York City offices. York and his family initially intended for him to stay in New York in order to further his education with a Master's degree. However, when the 49ers brought in Mike Nolan to be head coach, it was decided that would be the best time to also bring York into the organization and prepare a several year transition of leadership.

York (local ⁱ/ˈjɔːk/) is a walled city, situated at the confluence of the Rivers Ouse and Foss in North Yorkshire, England. The city has a rich heritage and has provided the backdrop to major political events throughout much of its two millennia of existence. The city offers a wealth of historic attractions, of which York Minster is the most prominent, and a variety of cultural and sporting activities.

The city was founded by the Romans in 71 AD, under the name of Eboracum. It became in turn the capital of the Roman province of Britannia Inferior, and of the kingdoms of Northumbria and Jorvik. In the Middle Ages, York grew as a major wool trading centre and became the capital of the northern ecclesiastical province of the Church of England, a role it has retained.

In the 19th century York became a hub of the railway network and a confectionery manufacturing centre. In recent decades, the economy of York has moved from being dominated by its confectionery and railway-related industries to one that provides services. The University of York and health services have become major employers, whilst tourism has become an important element of the local economy.

John C. York (born April 18, 1949) is a retired American cancer research pathologist, married to Marie Denise DeBartolo York, and former co-owner and current co-chairman of the San Francisco 49ers. The Yorks have four children: sons Jed and Tony, and daughters Jenna and Mara.

York was born in Muskogee, Oklahoma. The son of a dentist who died when York was 15, York grew up in Little Rock and attended local schools until college. He graduated from the University of Notre Dame in South Bend in 1971. He received a doctorate in blood pathology from Stritch School of Medicine at Loyola University Chicago in 1975, and engaged in seven years of post-doctoral study, specializing in the laboratory diagnosis of lymphoma and leukemia.

York left academia to establish DeYor Laboratories in Boardman, Ohio, a partnership with his father-in-law, Edward J. DeBartolo Sr. In 1999, he sold DeYor Laboratories. York has made a number of contributions in the medical field, having given a $1.5 million contribution to establish an Endowed Chair in Pathology and an Endowed Chief Residency in Pathology at the University of Arkansas for Medical Sciences. In 1999, he donated a science and math building to Catholic High School for Boys, his alma mater.

Aldon Smith (born September 25, 1989) is an American football outside linebacker who currently plays for the San Francisco 49ers. He was drafted by the 49ers with the seventh overall pick in the 2011 NFL Draft. He played college football at Missouri.

Smith attended Raytown High School in Raytown, Missouri, where he recorded 60 tackles, 21 tackles for loss, and 12 quarterback sacks, while adding 7 forced fumbles, 1 blocked punt and 1 safety as a senior. He also stood out on offense, as he caught 34 passes for 570 yards and 4 TDs as a tight end.

Considered only a three-star recruit by Rivals.com, Smith was considered No. 5 overall prospect (any position) in the state of Missouri, as well as the No. 27 strongside defensive end in the nation. Smith chose Mizzou over Nebraska, Kansas and Kansas State, among many others.

After being redshirted as a freshman in 2008, Smith started 11 of 13 games at defensive end in 2009. He finished the season with 60 tackles and 11 sacks. He was named the Big 12 Defensive Freshman of the Year and a first team freshman All-American. As a sophomore in 2010 he played in nine games, recording 48 tackles and six sacks.

Michael "Mike" Singletary (born October 9, 1958) is an American football coach and former professional football player. He is currently the linebacker coach and assistant head coach for the Minnesota Vikings of the NFL.

After playing college football for the Baylor Bears, Singletary was drafted by the Chicago Bears in the 2nd round of the 1981 NFL Draft and was known as "The Heart of the Defense" for the Chicago Bears' Monsters of the Midway in the mid-1980s. He was inducted into the Pro Football Hall of Fame in 1998. Singletary later pursued a career as a coach, first as a linebackers coach for the Baltimore Ravens, then as the linebackers coach for the San Francisco 49ers. He was the team's interim head coach in 2008, and coached the 49ers until he was fired in 2010.

Singletary was born in Houston, Texas. He attended high school at Evan E. Worthing High School in Houston, and he was a star football player there.

Singletary attended college at Baylor University in Waco, Texas. At Baylor, Singletary earned All-America honors in both junior (1979) and senior (1980) years, where he averaged 15 tackles per game and established a team record with 232 tackles in 1978, including 35 in a game against the University of Houston. During Singletary's senior season of 1980, Baylor won 10 games, marking the first time in school history that had been accomplished.