Tri-valley High School Alumni
Colton, South Dakota (SD)
Mark Koopman
Tri-valley High School
Class of 1988
→ Join 1302 Alumni from Tri-valley High School that have already claimed their alumni profiles.
→ There are 52 classes, starting with the class of 1960 all the way up to class of 2021.
MARK'S PROFILE
| First Name | Mark |
| Last Name | Koopman |
| Graduation Year | Class of 1988 |
| Gender | Male |
| City | N/A |
| State/Province | CO |
| Country | United States |
| Occupation | Assistant Principal/AD |
| Married | Yes |
| Favorite School Memory | Telling Mrs. Schultz the red bandana around her neck looked like a "slow moving vehicle" sign when she was pregnant |
| About Me | Education...I have been in school (taking classes, teaching classes, coaching, or administration) |
Class of 1988 Alumni and Other Nearby Classes
→ Reunite with 10 class of 1988 alumni that have joined.
Becky Anfinson
Class of 1986
Lessa Duimstra
Class of 1968
William Morrill
Class of 1988
Paul Farr
Class of 1983
Aaron Hofer
Class of 2000
Elaine Weiss
Class of 1968
Heidi Dumke
Class of 1994
Kelsey Carlson
Class of 2015
Sarah Wehde
Class of 1997
Mikale Miska
Class of 2008
Scott Burggraff
Class of 1977
John Erdmann
Class of 1987
Brady Fritz
Class of 2000
Andrea Berndt
Class of 1992
Brian Sletten
Class of 1972
Alfred Miller
Class of 1971
Paul Meyer (siers)
Class of 1986
Amanda Williamson
Class of 1998
