 For all her research work, Plug received financial support from the Foundation for Research Development, now the National Research Foundation, the Transvaal Museum, and the Human Sciences Research Council in Pretoria.After retirement, Plug taught, part-time, at the University of Pretoria on subjects of archaeozoology and museology for many years.In 2005, she was made a research fellow in the Department of Anthropology and Archaeology of the University of South Africa and in 2008 was honoured with the status of Professor Extraordinarius.