He returned to New Zealand and found work as a hotel manager and on 5 January 1950 he married Elizabeth Rita Wells in Auckland. He soon after became a clerk for the Ministry of Works in Mangakino. Arthur had a preference for hard, physical activity and disliked clerical work. Thusly, he resigned three years later and worked in a series of labouring jobs subsequently. Whilst working in a sawmill, Arthur became secretary of the Waikato section of the New Zealand Workers’ Union. In 1956 he was elected to the unions national executive, and served as president of the Auckland branch for three years.