Following the war, Arthur chose to speak openly about his experiences, something many returned soldiers found difficult to do. He dedicated much of his life to educating young Australians about the realities of war, the importance of remembrance, and the values of courage, compassion, and service.
Arthur regularly visited the school to speak with students, attend assemblies, graduations, commemorative services, and special events. Through his warmth, humility, and wisdom, he became a beloved figure within the school community.
It was Arthur's request in 1997 that led Mount Lawley Senior High School to become involved with the Ex-Prisoners of War Memorial in Kings Park. Since then, generations of students have continued the tradition he valued so deeply.
In 2017, Arthur was inducted as a Lawley Legend, becoming the only non-alumnus to ever receive the honour. In 2018, to celebrate his 100th birthday, the school renamed its library the Arthur Leggett OAM Library in recognition of his extraordinary contribution to the school and wider community.
Arthur passed away in 2025 and was honoured with a State Funeral on 10 May 2025 in recognition of his outstanding service to Western Australia and Australia. Mount Lawley Senior High School's choir was honoured to perform at the service, continuing the strong connection Arthur shared with the school and its students.
Mount Lawley Senior High School remains committed to preserving Arthur's legacy and continuing the traditions of remembrance, respect, and service that he championed throughout his life.