216.65—Who is an employee's widow(er).
         An individual who was married to the employee at the employee's death is the deceased employee's widow(er) if he or she:
    
    
    
    
        
        (c) 
         Was married to the employee when either the employee or the widow(er) adopted the other's child, or they both legally adopted a child who was then under 18 years old;
    
    
        
        (d) 
         Was married to the employee less than 9 months before the employee died but, at the time of marriage, the employee was reasonably expected to live for 9 months; and
    
    
    
        
        (2) 
         The employee died in the line of duty while he or she was serving active duty as a member of armed forces of the United States; or
    
    
    
    
        
        (1) 
         A benefit under  section 202 of the Social Security Act as a widow, widower, spouse (divorced spouse, surviving divorced spouse), father, mother, parent, or disabled child; or
    
    
        
        (2) 
         An annuity under the Railroad Retirement Act as a widow, widower,  divorced spouse, or surviving divorced spouse, parent or disabled child; or
    
    
        
        (f) 
         Could have been entitled to a benefit listed in paragraph (e) of this section, if the widow(er) had applied and been old enough to qualify therefor in the month before the month of marriage.