Ward was the eldest of eight children of John McEntyre, an engineer from Victor Harbor, and his wife Margaret Anne. By 1904, the family had moved to the Western Australian goldfields, living first at Kalgoorlie and then Coolgardie. Mary began teaching at Tunneys State School in June 1915, and gained her junior cadet training certificate in September of the next year. From 1918 to 1924 she taught at Kalgoorlie, Boulder and Carlisle. She was promoted to head teacher in 1924, and moved to Parkfield, Pingrup, Cottesloe, Wyering, Keysbrook and Latham before transferring to Wyndham, Western Australia in 1932.
Married life
On 27 December 1932, Mary Alice married Philip "Ted" Ward, a stockman, at the office of the district registrar in Wyndham. For two years, the Wards lived at Jack Kilfoyle's Rosewood station, 120 miles southeast of Wyndham. With Mary's brother Stuart, they joined the gold rush at Tennant Creek, Northern Territory, in 1935. Prospecting at a mine site that they called Blue Moon, the family struck gold, reputedly worth about $150,000. In 1941, the Wards bought the cattle station Banka Banka, where Mary supervised the development of an extensive garden.
Able widow
After her husband's death in 1959, Mary ably ran Banka Banka and the family's other stations. She also owned a butcher shop at Tennant Creek, supplying it from a slaughterhouse on the property. One of her cattle managers recalled that she spent money on the welfare of her Aboriginal staff - many of whom she trained in domestic and station duties - while economizing on repairs and improvements, and eschewing new management methods. She was known to have dismissed white employees because of their ill treatment of Aborigines. She acquired five houses at Tennant Creek for her old retainers and, despite objections from the local town management board, arranged for construction in 1968 and 1969 of a large red-brick building to house former employees and their relatives. The "Mary Ward Hostel," as it was known in addition to the "Pink Palace," was later used for a range of community purposes.
Motherly figure
Having no children of her own, Ward cared for the babies of her Warumungu employees. In the 1950s, a native affairs branch inspector wrote that "youngsters on this station look the picture of health, and this is entirely due to the unremitting personal care and attention given by Mrs. Ward." She did not agree with the policy of removing part-Aborigines from their mothers. They sent children to school at Alice Springs at their own expense until 1961, when due to her efforts a government school opened at Banka Banka.