Memorial contributors
- AFSCME Council No. 6 AFL-CIO
- AFSCME – Local 1309
- AFSCME Local 2672
- AFSCME – Local 2792
- Association of Women Contractors
- Cambridge Regional Center – Local 390 AFL-CIO
- Darwin J. Murphy
- DBA Metro Quality Testing, Inc.
- Doug Wallgren
- Edward Kraemer & Sons, Inc.
- Elizabeth & Michael Brown
- Employees Local 3139, AFSCME AFL-CIO
- Highway Employees Policy Committee
- Hiway Federal Credit Union
- International Union of Operating Engineers Local 49
- J+C Trucking of Forest Lake Inc.
- L.S. Black Constructors, Inc.
- Laborers-Employers Cooperation & Education Trust
- Lafarge Corporation
- Middle Management Association of MnDOT Local 1
- Minnesota AFL-CIO
- Minnesota Government Engineers Council
- Minnesota State Employees Local 280
- Minnesota State Highway Employees Local 789
- Minnesota State Transportation Employees Union Local 1011
- Minnesota Trucking Association
- Nancy L. Thorgrimson
- Nancy & David Smith
- Northland Chapter American Traffic Safety Services Association
- Progressive Contractors Inc.
- Sellin Brothers, Inc.
- Simplex Construction Supplies Inc.
- State Employees Local Union 1013
- State Employees Union – AFSCME Council 6 Local 718
- St. Paul Chapter, NCEA/Electricians Local 110
- Teamsters Local 221