I found on the Northgate HS Wikipedia page that the Class of 1986 has a notable sports alum:
Matt Irvin joined the USC staff in June of 2000 as an offensive assistant, working with the offensive line.
He came to USC from Cal Poly San Luis Obispo, where he served as the offensive line coach in 1999.
Irvin, 32, has 8 years of offensive line coaching experience. He began his coaching career as the offensive line coach at Diablo Valley Community College in Pleasant Hill (Calif.) in 1990 and 1993. The 1990 Diablo Valley squad went 9-2 and played in the Pepsi Sequoia Bowl.
He next was the offensive and defensive line coach at his prep alma mater, Northgate High in Walnut Creek (Calif.), in 1994 and 1995 before returning to Diablo Valley in 1996, again as the offensive line coach.
He then was a graduate assistant coach at UNLV in 1997, working with the offensive line, and was an offensive assistant at Fresno State in 1998, handling the offensive tackles, before going to Cal Poly.
He spent the 1991 and 1992 seasons running his own manufacturer's representative business.
Irvin was a 2-year (1988-89) starting offensive guard at Oregon State. He held the school's bench press record.
He was on the football, track and wrestling teams at Northgate High.
He received his bachelor's degree in speech communication from Oregon State in 1992. He currently is working on his master's degree in special education from UNLV and is taking education classes at USC.
Born on July 20, 1968, he is single.
BIRTHDAY: July 20, 1968
HIGH SCHOOL: Northgate HS, Walnut Creek, Calif.
EDUCATION: Bachelor's degree, speech communication, Oregon State, 1992
PLAYING EXPERIENCE: Northgate HS, Walnut Creek, Calif.; Oregon State, offensive guard, 1988-89
COACHING EXPERIENCE: 8 years