Horace Gundry Alexander (18 April 1889 – 30 September 1989) was an English Quaker teacher, writer, pacifist and ornithologist.

His father, Joseph Gundry Alexander (1848–1918), was an eminent lawyer, who had worked to suppress the opium trade between India and China.

That year Alexander joined a section of the World War II Friends Ambulance Unit and went to parts of India that were threatened by Japan.

[4] Alexander was a lifelong, dedicated and gifted birdwatcher, keenly involved in the 20th-century movements for the protection and observation of birds.

Growing up in a Quaker home devoid of any other forms of entertainment, his interest in birds began at the age of eight, when his older brother Gilbert gave him a book on natural history.

[5] In his autobiography he traced the beginnings of this interest in birds to 8.45 am on 25 March 1897, when an uncle pointed out a singing chiffchaff in their garden.

One early member of the organisation was the young Indira Gandhi, and the group encouraged Indian ornithologists such as Usha Ganguli.

Alexander's father-in-law, John William Graham, believed that Gandhi was a subversive and that the Indians were unprepared for self-government.

At the Quaker yearly meeting in 1930 the Nobel Prize-winning poet Rabindranath Tagore attacked colonial rule in India.