Born in Brighton on the coast of England in the County of Sussex in 1837, William Andrew Knight Plummer was also the scorer in first three Test Matches in Australia in 1877 and 1879. He emigrated with his William Plummer was associated with the East Melbourne Cricket Club being on the committee as early as 1861 serving roles such as Vice-President, Secretary and Treasurer. The earliest record of him scoring was in 1865, when he was noted as the scorer for a match between East Melbourne and Ballarat. In 1864, he was elected as a committee member at the inaugural meeting of the Victoria Cricketers’ Association and in 1867 he was elected as Treasurer of the Melbourne Cricket Club. In 1868, he married Eliza Passmore and they had five children over the next 11 years. By 1874, he was associated with the South Melbourne Cricket Club as their umpire.
He worked for the General Post Office as a clerk in the money order branch until 1874 when he was dismissed from office due to a deficiency in his accounts. The matter reached as high as the Victorian Legislative Assembly but by 1876 he was being declared insolvent. His luck changed when he was selected to be a temporary Town Clerk for the Borough of Essendon and Flemington. Throughout the late 1870s and early 1880s, he was elected, most unopposed as the Auditor for the Borough, until 1885 when he was challenged by Charles Arvier who had also scored a Test Match in 1882. Plummer won the vote in 1885 with almost 75% of the vote. Plummer passed away in 1887 at the young age of just 49. He was a long term scorer for the Victorian colonial side, scoring for them from the late 1860s till at least 1880.