 Holdridge was not invited to the latter's wedding to Woolworth heir Lance Reventlow in November 1964, and shortly thereafter, moved to Toledo, Ohio.His principal occupation during the last years of his life was in attempting to keep alive his Hopi government project, which was rendered futile by his inability to attract either funding or supporters.Holdridge died at the Veteran's Administration Hospital in Brecksville, Ohio, on September 29, 1974.

a letter from Herbert C. Holdridge to the President, Congress and Supreme Court of the U. S., Titled