6825769Clark, Cecil Olbers : Teachers' Federation0public0000-00-00 00:00:002020-11-24 11:35:51150
President of Nambucca Branch 1932263110Clark, Cecil Olbers5221Teachers' Federation (1932, May 13). Nambucca and Bellinger News (NSW : 1911 - 1945), p. 4. Retrieved April 5, 2018, from http://nla.gov.au/nla.news-article2146382066804263110Clark, Cecil Olbers
 1125https://heurist-usyd.cloud.edu.au/heurist/ExpertNationProfessional Association Membership1125-691