The Oklahoma Order of the Eastern Star has contributed each of the past 20 years.
The grant will support the Aging and Metabolism Research Program and completes a $5.2 million expansion campaign.
Established in 2015, the Loyal Donors Society recognizes those who have made donations to OMRF for at least five straight years.
The funds were raised at Rainbolt’s 90th birthday party, which included a private concert by country music legend Willie Nelson.
You’re doing fine, OMRF! After 75 years, the state’s namesake musical continues to benefit medical research.
Cowboys from across the country will saddle up to fight cancer on May 6 in Kingfisher.