Social Security Death Index - ancestry.com @ of Ruth HOLKE - SS#367-24-2105 (issued in MIchigan bef. 1951)
(Ref: of Ruth HOLKE - SS#367-24-2105 (issued in MIchigan bef. 1951)) This citation is considered to be direct and primary evidence used, or by dominance of the evidence.
Social Security Death Index - ancestry.com.