Prior to being elected, he was the executive chef at well-known Kingston restaurant Chez Piggy and coached rowing for Queen's University.

Moving with his parents at age two to Lyndhurst, Ontario, Arthur grew up on a small organic market garden and farm.

As an advocate for fighting climate change, Arthur highlighted in his speeches in Legislature numerous environmental and ecological issues with several Progressive Conservative bills.

In 2019 Arthur was appointed to the Executive of the Council of State Governments Eastern Regional Conference by Speaker Ted Arnot.

[5] The riding returned to the Liberals when former MP Ted Hsu defeated Arthur's previous NDP nominee (2011 and 2014) Mary Rita Holland in the election.