Pedzisa mutsara unotevera: Muna March 2007, Duggan ane makore 15 akabuda pabhenji rokutsinhanisa kuti awane zvibodzwa pakutanga kwake kuEngland Under-17s. Iye kubvira ipapo akamiririra England pa Under <unk>19, Under <unk>20 uye Under <unk>23 mazinga. Akatamba muFIFA U-20 Women's World Cup zvose muna 2008 na
Gore ra2010. Pazuva rokuberekwa kwaDuggan rechi18, akarova chimwe chezvinangwa zviviri muEngland muna 2009 UEFA Women's Under-19 Championship mukukunda kwekutanga, vachipesana neSweden muBelarus.