I think you should contact someone who would know more about this than
anyone on this list unless there is someone on here who works with this on a
daily basis. SSDI and Widower's benefits are two different programs. And
you usually have to be married for 10 years or more before being eligible to
draw on a spouse's work record. I would contact either a Social Security
lawyer or one of the two blindness organizations to find out what your
rights are.
Harvey