(1795 London - 1880 London)
Thomas was the eldest of the fourteen children of engraver John Landseer. Seven of the children survived to adulthood and all became artists; his younger brothers, Charles and Edwin, were painters and later Royal Academicians. Like his father, Thomas was deaf. He was the only sibling to marry, his wife's name was Belinda. His son George Landseer became a portrait and landscape painter.
Like his siblings, Landseer was taught artistic techniques by his father. He then studied under painter Benjamin Robert Haydon alongside his brother Charles. He began etching aged 14, copying Edwin's drawings. Thomas continued to make etched copies of Edwin's works in later life, including The Monarch of the Glen (1852) and all together he engraved 103 of Edwin’s pictures. His soft-ground etchings complimented his brother's animal paintings, and sales of the popular prints (retailing for between 3 and 10 guineas) contributed to Edwin’s fame and fortune. He assisted his brother with giving art lessons to Queen Victoria and Prince Albert.