Dixon took over that part of his father's farm that was located in Eyrewell in the Waimakariri District.[3] His father had been a pioneer in irrigation, and Dixon Jr. further developed the system of land irrigation, chairing the Waimakariri-Ashley water supply board for some years.[2]
Guy Mannering (left) and Marmaduke Dixon ice-climbing at Onslow Glacier
Dixon was a keen mountaineer. He climbed with Guy Mannering in the Southern Alps / Kā Tiritiri o te Moana and together, they attempted several times to achieve the first ascent of Aoraki / Mount Cook,[4] the country's highest peak.[5] In one of those attempts, they came within 100 feet (30 m) of the summit.[2] Their canoe trip down the Tasman River, across Lake Pukaki, and then down the Waitaki River until they reached the Main South Line so that they could catch a train back to Christchurch inspired adventure sports competitors Steve Moffatt and Steve Gurney to re-enact their climbing and canoeing adventures in 2010.[6] In 1891, Dixon was one of the founders of the New Zealand Alpine Club in Christchurch.[2]
In 1897, Dixon married Mabel Courage at Amberley;[2] they had six children. On 31 July 1918, he died from a recurring illness at Brockelhurst Hospital in Rangiora.[7]Dixon Peak in the Southern Alps, previously known as Mount Dixon, was named after him by Noel Brodrick. Marmaduke Dixon Glacier in the Selwyn District, feeding into the White River, was also named by Brodrick after him.[8]
