At 30 years old, Fox left municipal council in 1890 when he was appointed to the Legislative Council by Prime Minister Sir William Whiteway. He then resigned Legislative Council to run in a by-election to fill a seat after Dr. John Dearin had died suddenly. Fox won the seat making him the first person elected to the House of Assembly under the new Manhood Suffrage Act of 1890. He was again reelected in St. John’s East in the general election of November 6, 1893.