At least his relations can submit a DNA Sample to the NCIC and/or report him so his profile appears on the Minnesota Missing Persons at https://dps.mn.gov/divisions/bca/bca-divisions/administrative/Pages/missing-unidentified-persons.aspx
or to North American MIssing website at http://www.nampn.org/mp1969-prior.html
or to http://www.ancestorhunt.com/missing-persons.htm
or to http://namus.gov/index.htm
or to North American MIssing website at http://www.nampn.org/mp1969-prior.html
or to http://www.ancestorhunt.com/missing-persons.htm
or to http://namus.gov/index.htm