Sir William Jackson Hooker (1785–1865) was a lifelong friend of Harvey (Papenfuss, 1976 p. 26), he was appointed Professor of Botany at Glasgow University in 1820 and became Director in Kew 1841–1865. Hooker recognized the talent in Harvey and lent him books, encouraged and invited him to write the section on algae in his British Flora. as well as the section on algae for The Botany of Captain Beechey's Voyage (Papenfuss, 1976).[14] Margaret Gatty (1809–1873) (née Margaret Scott) (author of British Seaweeds, 1863), and others, corresponded with William Henry Harvey (Desmond, 1977 and Evans, 2003).[25][26]