Okemos High School Alumni
Okemos, Michigan (MI)
John Grettenberger
Okemos High School
Class of 1955
→ Join 3086 Alumni from Okemos High School that have already claimed their alumni profiles.
→ There are 73 classes, starting with the class of 1939 all the way up to class of 2026.
JOHN'S PROFILE
| First Name | John |
| Last Name | Grettenberger |
| Graduation Year | Class of 1955 |
| Gender | Male |
| City | N/A |
| State/Province | MI |
| Country | United States |
| Occupation | Pres. Lorann Oils, Inc |
| Married | Yes |
| Favorite School Memory | Mrs Thelma Lamb |
| About Me | 35 Years with General Motors. A chieved level of GM Vice President, was General Manager of the Cadillac Division for 13 years. |
Class of 1955 Alumni and Other Nearby Classes
Lisa Sampona
Class of 1986
Doug Hapeman
Class of 2000
Karen Neumann
Class of 1976
Shellee Klimaszewski
Class of 1977
Brad Tieman
Class of 1995
James Smith
Class of 1993
Tom Harsha
Class of 1979
Jenny Johnson
Class of 1998
Kreton Mavromatis
Class of 1985
Matt Tomlinson
Class of 1989
Nnamdi Iroham
Class of 1999
Tonya Peterson
Class of 1990
Jeremy Kirsch
Class of 1993
Hatsue Nozaki
Class of 1972
Brett Schulenberg
Class of 1988
Chris Osters
Class of 2005
Dottie Trotter
Class of 1986
Dimitri Constant
Class of 1990
Recent Class of 1955 Reunions
Plan a Class of 1955 Reunion for Free
Winter Event 2013: Then & Now, Always a Chieftain
Invited Classes: All Classes
Date: Mar 09, 2013
Description: Dear Supporter of Okemos Schools: Each year hundreds of student athletes in Okemos take advantage of the opportunities p...(read more)