[citation needed] In 1937, Milne published Ostrich Heads, a book predicting an upcoming war and encouraging young Australians to become involved in public life.

[8] Also during his time on the council, Milne initiated action for a free public library in Walkerville and campaigned for the establishment of the town's YMCA Youth Centre.

He resigned from the Walkerville council in December 1965, when he was appointed the Agent General for South Australia in London by Premier Frank Walsh.

In December 1970, when the prospects of the United Kingdom joining the European Union started to grow greater, Milne said "If more countries go into the Common Market [EU], it will start the greatest war ever seen," later comparing the common market to the Roman Empire, stating that both would eventually become rich and subject to external pressures.

Milne's 1979 election manifesto included policies supporting rural South Australians, subsidies on petrol, and the decentralisation of government.

In February 1996, Deputy Premier Stephen Baker told a story about Milne from November 1995: "We had the annual general meeting of the Royal Life Saving Society, of which Lance was President...

He came down with Joan for that night to say hello to the people he had worked with and supported, having harassed and harangued the government to gain better results for one of his favourite organisations.