Marion served in Egypt at the 1st Australian General Hospital, based in the Heliopolis place hotel. Her duties, along with the other nurses, was to help wounded Australian soldiers in the Gallipoli Campaign. During the war, Marion unfortunately developed pleurisy, (an inflammation of the tissues that line the lungs and chest cavity), and was returned to Australia. She arrived on the January 28th, 1916 after travelling on the Kanowna. Marion was discharged as medically unfit in 6th of June, 1916 (Trove, 2017).

 Upon her return to Australia Marion became the first secretary of the Queensland War Nurses Fund, which provided assistances to nurses who had served in Gallipoli; she also became a Queensland Guides Commissioner and a Red Cross Society member (Hinchliffe, 2016).

Approximately 180 photographs were taken by Marion during her time in Egypt, "The photos ... are lovely touristy shots taken around Cairo," (Hinchliffe, 2016), and were mostly taken in Cairo. Images included many of the nurses who served at the Aboukir Rest Home and ANNS (Trove, 2017).

Marion’s life came to a tragic end when she was a passenger aboard the BOAC Lockhead plane that crashed at Kallang Airport, Singapore on 13th of March 1954; she was 67 years old (Trove, 2017). Marion and her husband David did not have any children.