Pittsburg High School Alumni
Pittsburg, California (CA)
Mark Guelfo
Pittsburg High School
Class of 1985
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MARK'S PROFILE
| First Name | Mark |
| Last Name | Guelfo |
| Graduation Year | Class of 1985 |
| Gender | Male |
| City | N/A |
| State/Province | CA |
| Country | United States |
| Occupation | Software |
| Married | Divorced |
| Favorite School Memory | My Friends and GF Wendy |
Class of 1985 Alumni and Other Nearby Classes
→ Reunite with 13 class of 1985 alumni that have joined.
Jimi Nathaniel
Class of 2014
Daemien Hemmick
Class of 2020
Marchell Nolen
Class of 1989
Olivia Plascencia
Class of 2003
Tamara Heath
Class of 2003
Wayne Ortega
Class of 1981
Cassandra Hinojosa
Class of 2009
Kel Mckinney
Class of 2011
John Rivera
Class of 1991
John D'agostino
Class of 1968
Frank Ramirez
Class of 2006
Donna Demarest
Class of 1968
Nechelle Nelson
Class of 1987
Vanessa Vanessa Herrera
Class of 1999
Connor Victor Hoang Le
Class of 2025
John Toupin
Class of 1970
Marisa Belleci
Class of 1984
Valerie Michaelis
Class of 1984