Rosie was for over 10 years the national president of the OHAA (now Oral History Australia), retiring in 2007. She was the president of the NSW Association from 1993 to 2010. During this period she fostered an active partnership between the OHAA and the State Library of New South Wales where she was curator of oral history.
Rosie conducted numerous seminars and workshops in Sydney and regional NSW and attended and presented a paper at all the national OHAA conferences from the 1990s to 2010. She was a co-convener of the international oral history conference in Sydney in 2006. Together with the NSW Oral History Association committee she was instrumental in the establishment of the Hazel de Berg Award for Excellence in Oral History. (2007)