Can a surviving widow of a Korean Vet get any benefits?

Yes. My MIL was the surviving widow of a Korean vet. This is the link provided by AgingCare. It has information on veteran benefits.

https://www.agingcare.com/eBook/Veterans-Benefits?ebs=btfhg

I went through an agency to help with my mothers VA Benefit. I did pay them about $500 ONLY when she was approved. They sent me all the forms and looked them over before I sent them off to the proper VA address. The agency is called Center for Aging Solutions they are located in Utah, I am in NJ. They were wonderful and a hugh help, I dealt with Jeb most of the time. It only took about 2 months before my mother was approved for the benefits. I don't have their number at hand but I do have their fax if needed. 801-295-3776. Good luck