Former Liberal MP Katie Allen has been farewelled in a touching memorial service attended by political, academic and medical leaders. Katie Allen was a prolific medical researcher and an authority on pediatric food allergy. A mentor to a number of scientists, doctors and students, Dr Allen was also an ambassador for Eating Disorders Families Australia. (Michael Currie/AAP PHOTOS)Toni Meath, principal of Melbourne Girls' Grammar School, said Dr Allen was ambitious, responsible, and gifted. Senator Jane Hume says Katie Allen "was one of the best among us and she has left us too soon".