References
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- Heffernan , H. 1934 . The case for kindergarten in public education . California Journal of Elementary Education , 3 : 30 – -33 .
- Heffernan , H. 1937 . Supervision appropriate for progressive schools . California Journal of Elementary Education , 6 ( 1 ) : 21 – -25 .
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- October 1 1966 . Helen Heffernan Honor Grove Bulletin October 1 ,
- Lane , M. B. October 1 1966 . Decades of progress. Presented at the dedication of the Helen Heffernan Grove, Prairie Creek State Park, Orick, CA October 1 ,
- Nance , A. February 6 1976 . Festival HH: Messages from those who couldn't come. A privately printed brochure February 6 ,
- Nixon , A. October 1 1966 . “ A teacher affects eternity ” . In Helen Heffernan Honor Grove Bulletin October 1 , 5
- Riles , W. September 1978 . Science framework for California public schools, kindergarten and grades 1 through , Vol. 12 , September , iv Sacramento : California State Department of Education . (p.)