Pub. L. 87-601. An Act to extend benefits of the Policemen and Firemen's Retirement and Disability Act Amendments of 1957 to widows and surviving children of former members of the Metropolitan Police force, the Fire Department of the District of Columbia, the United States Park Police force, the White Hbuse Police force, or the United States Secret Service Division, who were retired or who died in the service of any such organization prior to the effective date of such amendments.