20 C.F.R. § 219.38 Evidence of stepparent or stepchild relationship.
Title 20 - Employees' Benefits
If the claimant is a stepparent or stepchild of the employee, the Board will ask for the evidence described in §219.37 or §219.39 which shows the person's natural or adoptive relationship to the employee's husband, wife, widow, or widower. The Board will also ask for evidence of the husband's, wife's, widow's or widower's marriage to the employee (See §§219.30–219.33).
Title 20: Employees' Benefits
PART 219—EVIDENCE REQUIRED FOR PAYMENT
Subpart C—Evidence of Relationship
§ 219.38 Evidence of stepparent or stepchild relationship.