Mt. Diablo High School Alumni
Concord, California (CA)
Sean Atkinson
Mt. Diablo High School
Class of 1991
→ Join 2567 Alumni from Mt. Diablo High School that have already claimed their alumni profiles.
→ There are 78 classes, starting with the class of 1930 all the way up to class of 2025.
SEAN'S PROFILE
| First Name | Sean |
| Last Name | Atkinson |
| Graduation Year | Class of 1991 |
| Gender | Male |
| City | N/A |
| State/Province | CA |
| Country | United States |
| Occupation | Caterpillar Dealer |
| Married | Divorced |
| About Me | moved to WA |
Class of 1991 Alumni and Other Nearby Classes
→ Reunite with 19 class of 1991 alumni that have joined.
Johanna Estrada
Class of 2012
Cathy Laughren
Class of 1983
Turner Turner Hardesty
Class of 1961
Judi Romano
Class of 1959
Carol Longshore
Class of 1963
Debbie Truong
Class of 2004
Richard Stahl
Class of 1969
Richard Richard Tannehill
Class of 1977
Narcissa Lanham
Class of 1989
Paul Matheson
Class of 1958
Ronald Vandergroen Ronald Vandergroen
Class of 1970
Christopher Neely
Class of 1991
Rico Samtos
Class of 1980
Ruth Crowell
Class of 1964
Dennis Dennis Treadway
Class of 1959
Joann Anderson
Class of 1966
Brian Magana
Class of 2007
Pam Johannes
Class of 1970
Upcoming Class of 1991 Reunions
Plan a Class of 1991 Reunion for Free
Class of 1969 57th Renunion
Invited Classes: All Classes
Date: Oct 17, 2026
Description: Casual event. No charge,
Recent Class of 1991 Reunions
CLASS OF 1972 MT. DIABLO HIGH SCHOOL REUNION
Invited Classes: All Classes
Date: Sep 09, 2023
Description: CLASS OF 1972 MT. DIABLO HIGH SCHOOL REUNION JOIN US TO CELEBRATE 50+ years! SATURDAY SEPTEMBER ...(read more)
5th Annual All Alumni Picnic Sponsered by Class of 1964
Invited Classes: All Classes
Date: Sep 21, 2014
Description: Asking $10.00 donation to offset cost of park Bring your own lunch and drinks. We have had lots of fun in past years w...(read more)
4th Annual Class Picnic sponsored by Class of 1964
Invited Classes: All Classes
Date: Sep 21, 2013
Description: Sponsored by the class of '64 we are inviting all classes to join us. This is our 4th annual picnic and we have ha...(read more)
Alumni reuion picnic
Invited Classes: All Classes
Date: Sep 22, 2012
Description: 3 annual class picnic (Class of '64) ! This is our 3rd annyual "Class of '64 picnic leading up to our 50...(read more)