"Who was the oldest person to be in parliament?"

Thanks for your question.

The oldest person to be a member of the Australian Parliament was William Morris (Billy) Hughes. He was aged 90 years and one month when he died on 28 October 1952 while still a member of the House of Representatives.

Mr Hughes is also the longest serving member of Parliament with 51 years and seven months of service representing various electorates in Sydney, NSW and Bendigo, Victoria.

You can find out more about Mr Hughes here.

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