William Cosmo Monkhouse,
Dictionary of National Biography…
(1892)
“ John Landseer was a F.S.A. and engraver to the king (William IV) , and attained an honourable reputation as an engraver, an antiquary, a writer on art, and a champion of his profession, but it has been said that his chief work was the bringing up of his three distinguished sons, Thomas, Charles, and Edwin. Out of eleven other children four daughters only lived to maturity: Jane (Mrs. Charles Christmas) , Anna Maria, Jessica [q. v.] , and Emma (Mrs. Mackenzie) . A portrait of him by his son Sir Edwin Landseer was exhibited at the Royal Academy in 1840. ”
