Career
Stewart was a bullion broker of the Hongkong and Shanghai Banking Corporation. He joined the bank in London in 1887 and was sent to the Far East in 1890. He stationed in Shanghai for three years, the moved to Tientsin and stayed in North China for three years, being in Peking during the First Sino-Japanese War.
He went home in 1895 and returned to Hong Kong in April 1896.
He retired from the company early in the First World War and was succeeded by H. B. L. Dowbiggin. During the First World War, he was responsible for associating with the London organisation and superintending the distribution of sum of money placed at his disposal by the War Charities Committee.
He also responsible for erecting the war memorial on the open space at Central, Hong Kong to became the Cenotaph today. During his residence in Hong Kong, Stewart was volunteer of the Mounted Troop commanded by C. B. Ross.
After his retirement, he was in London in connection with Five Power Loan Group and the Hongkong and Shanghai Bank.
He health began to fail in 1918 left Hong Kong to California in the spring of 1921, hoping the climate there would restore his health. He died at the Belmont Sanatorium in California in 1922 at aged 57.