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
Rocky Foster
Class of 1998
Sarah Wehde
Class of 1997
Kevin Farmer
Class of 1982
Sarah Papke
Class of 1992
Peggy Ordal
Class of 1999
Jan Siemonsma
Class of 1984
Tabitha Ordal
Class of 1995
David Foraker
Class of 1969
Cindy Van Duyn
Class of 1990
Jodi Sundby
Class of 2002
Lisa Cunningham
Class of 1986
Kari Houser
Class of 2006
Emelee Volden
Class of 1998
Trevor Trevor
Class of 2004
Jeff Rentschler
Class of 1981
John Schaefer
Class of 1991
Esther Edith
Class of 1990
Michelle Williams
Class of 2009
