There are lots of places to look when wanting a grant for education.
Check out Federal Student Aid Web Site or FAFSA http://www.fafsa.ed.gov/
I suggest you explore all federal funding and grant options at the Federal Student Aid website http://federalstudentaid.ed.gov/ and there also a Handbook of the Pell Grant, an 86 page document that contains everything about the grant. You can also call the Federal Student Aid Information Center at 1-800-433-3243 and ask them if there are any programs for you.