Kammala wannan jumla: An ƙi Tweedy aiki a matsayin malami a kan cewa idan ta yi ciki zai zama abin ƙyama ga ɗalibanta. Da fara yakin duniya na II ta yanke shawarar magance tasirin karancin abinci a lokacin yaƙi a kan yara. Kokarinta tare da wasu mata huɗu sun haifar da Takardar 'Yan Matan Gida na 1941, wanda daga ciki ya girma Kwamitin' Yan Matan Gida na Irish a 1942, wanda ya zama IHA a 1946. A karkashin jagorancin Tweedy, IHA ta haɗu da Ƙungiyar 'Yan Matan Irish a 1947, ƙungiyar da aka kafa don yin kira don sake fasalin Tsarin Mulki na 1937 na Ireland wanda ya bayyana (Sashe na 41.2) mata a matsayin masu gida. Haɗin "ya ƙarfafa imaninmu na mata", in ji Tweedy. Aikin IHA ya faɗaɗa daga haƙƙin masu amfani kawai zuwa bayar da shawarwari don haƙƙin siyasa. Ƙungiyar ta yi yaƙi don samun abinci mai gina jiki, kiwon lafiyar jama'a, jin daɗin jama'a, da kuma ilimi ga kowa. Ita ce wakilin wakilin Irish a Majalisar Dinkin Duniya
Taron Duniya kan Mata a shekarar 1975. A cikin 1992 ta buga "A Link in the Chain: Labarin Kungiyar 'Yan Matan Gida ta Irish 1942<unk>1992". A shekara ta 2003 ta ba da takardun ta ga National Archives of Ireland.