You have his birthdate and SSN correct?
Go online, fill out a joint credit card application and get a credit card with your both names on it. Go through his desk if you have to and get his bank account information. I am sorry, but I am shocked that you have no access to bank accounts.
What happens if you just ask him for a couple hundred dollars for "stuff"? Will he give it to you?
Try Health & Human Services (State) ###-###-#### - they may have some options for you.
Locate your local women's shelter - you don't have to go there - but they probably have a list of resources for women with no money who need help.
Call the Red Cross - again - they cannot help you directly, but may have referral ideas for you.
Basically, you need to burn up the phone lines until you find the help you need.
God Bless