Who would I contact to get information on government financial assistance for assisted living programs for veterens?

The good news is that there is financial aid and housing available for veterans. The bad news is you are going to have to spend some time researching the options and determining if the vet is eligible. AgingCare has some articles on Veterans and Senior housing. Here's one in particular that might help you:
https://www.agingcare.com/138105

Also, here are some agencies that can provide a wealth of information:

State Office of Veteran Affairs:
http://www.va.gov/statedva.htm

National Association of State Veteran Homes:
http://www.nasvh.org/index.cfm