1. ^{{cite news |last1=Briggs |first1=Barbara |title=Botanist Alison McCusker's Flora of Australia remains a formidable legacy |url=https://www.smh.com.au/national/botanist-alison-mccuskers-flora-of-australia-remains-a-formidable-legacy-20160129-gmgp5h.html |work=Sydney Morning Herald |date=29 January 2016 |archiveurl=http://web.archive.org/web/20190318180941/https://www.smh.com.au/national/botanist-alison-mccuskers-flora-of-australia-remains-a-formidable-legacy-20160129-gmgp5h.html?js-chunk-not-found-refresh=true |archivedate=18 March 2019 |language=en |quote=The variety of her significant achievements make the career of botanist Alison McCusker especially notable. Whether she was teaching at the University of Ghana in west Africa, organising proposals for World Heritage listing, encouraging research in crop plants in developing countries, or planning the Flora of Australia project in Canberra, McCusker always made a huge contribution.}}
2. ^{{cite web |title=McCusker, Alison (1933 - 2015) |url=http://www.eoas.info/biogs/P005695b.htm |website=Encyclopedia of Australian Science |accessdate=18 March 2019 |language=en |quote=Alison McCusker was appointed first Director of flora programs at the Australian Biological Resources Study (ABRS), and was instrumental in turning the Flora of Australia from a hopeful concept into viable project.}}
3. ^{{cite web |title=McCusker, Alison (1933 – 2015) |url=https://www.anbg.gov.au/biography/mccusker-alison.html |website=Council of Heads of Australasian Herbaria, Australian National Herbarium |accessdate=18 March 2019}}
4. ^¹ {{cite journal |last1=George |first1=Alex |title=Alison McCusker and the Flora of Australia |journal=Australasian Systematic Botany Society Newsletter |date=December 2015 |issue=165 |pages=62-64 |url=http://www.asbs.org.au/newsletter/pdf/15-dec-165.pdf|archiveurl=http://web.archive.org/web/20190302080048/http://www.asbs.org.au/newsletter/pdf/15-dec-165.pdf|archivedate=2 March 2019}}