Tri-valley High School Alumni
Colton, South Dakota (SD)
Cathi Costain (Cathi Van Helden)
Tri-valley High School
Class of 1969
→ 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.
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
Mark Koopman
Class of 1988
Brian Brian Unzelman
Class of 2000
Jodi Neeley
Class of 1988
Elaine Weiss
Class of 1968
Crystal Mohrhauser
Class of 2001
Sarah Wehde
Class of 1997
Kazzi Foster
Class of 1995
Kevin Farmer
Class of 1982
Kristi Brendtro
Class of 1970
Cindy Immeker
Class of 1968
Jennifer Johnson
Class of 1996
Larry Dalzell Larry Dalzell
Class of 1992
Ashton Benson
Class of 2005
Deb Mcgee
Class of 1969
Jaimie Iseminger
Class of 2005
Jodi Hollopeter
Class of 1994
Stacy Carpenter
Class of 1992
Rob Heinis
Class of 1971
