Reduction in survivor benefits if they start at age 60

Your survivor benefits are a function of your when you start the benefits and your birth year.

For example, if you were born between 1945 and 1956, your full retirement age for survivors benefits is 66. If you begin survivor benefits at age 60 and zero months, your benefit would be 71.5 percent of what you would receive if you waited until age 66.

http://www.ssa.gov/survivorchartred.htm

http://www.ssa.gov/survivorplan/1945s.html