Tri-valley High School Alumni
Colton, South Dakota (SD)
Cathi Costain (Cathi Van Helden)
Tri-valley High School
Class of 1969
→ Join 1299 Alumni from Tri-valley High School that have already claimed their alumni profiles.
→ There are 51 classes, starting with the class of 1960 all the way up to class of 2021.
CATHI'S PROFILE
| First Name | Cathi |
| Last Name | Costain |
| Maiden Name | Van Helden |
| Graduation Year | Class of 1969 |
| Gender | Female |
| City | N/A |
| State/Province | SD |
| Country | United States |
| Occupation | Fraud Investigations |
| Married | Yes |
| Favorite School Memory | HS Basketball Tournaments - Big Winning Moments!! |
| About Me | Traveled quite a bit, raised kids and stayed living in the area! |
Class of 1969 Alumni and Other Nearby Classes
James Miron
Class of 1989
Krista Greer
Class of 2008
Ana Olson
Class of 2001
Emelee Volden
Class of 1998
Melanie Duimstra
Class of 1968
Tabitha Ordal
Class of 1995
John Erdmann
Class of 1987
Mark Koopman
Class of 1988
Kim Ramstad
Class of 1981
Esther Edith
Class of 1990
Lisa Vandervliet
Class of 1999
Lanie Duimstra
Class of 1968
Danielle Hoek
Class of 1998
Steven Gunn
Class of 1976
Lisa Tebbe
Class of 1981
Ozzy Randall
Class of 2008
David Reurink
Class of 1968
Brad Vosburg
Class of 1988
