Kelly emigrated from Liverpool to New Zealand in 1954 and started working at the Methven tap factory in Dunedin. He was an official of the Drivers' Union, a secretary of the Cleaners' and Caretakers' Union and president of the Wellington Trades Council during his career.[1] He was also active in the anti-Vietnam War, anti-apartheid, anti-nuclear, and peace movements.[2]
He died in Wellington in 2004, aged 74.[2] He was cremated and his ashes inurned at Karori Cemetery.[3] His daughter Helen was also an activist and trade unionist.