The Oklahoma Silver Haired Legislature Alumni Association (OSHLAA) is the supporting organization of the Oklahoma Silver Haired Legislature (OSHL). The membership consists of OSHL members having served at least one year of their first term in the OSHL. 

The purpose of the Alumni is:

• To aid and support the OSHL;
• To encourage past OSHL to remain active or renew activities in reaching the OSHL mission of senior advocacy;
• To conduct OSHL business in agreement with the policies and rules of the Area Agencies on Aging (AAA); and
• The Alumni raises money for the OSHL through fundraising events and individual contributions and from annual membership dues and registration fees. The OSHL receives technical and office support from Aging Services Division (ASD) and the 11 Area Agencies on Aging (AAA) and receives charitable donations from corporations.
  

Recent state legislation was passed allowing individual state taxpayers to check off on their tax returns an amount they want to contribute to the OSHL and/or the OSHLAA from their tax return amount, at no expense to the state.

The group meets during the first three quarters of the year, in  coordination with the state legislature's year.