[1] He is, together with Hugh Lygon and Stephen Tennant, considered the main inspiration for Sebastian Flyte in Brideshead Revisited.

[3][1] Jessie Graham, a cotton heiress, would later appear as Lady Circumference in Decline and Fall and as Mrs. Kent-Cumberland in Winner Takes All both by Evelyn Waugh.

[4] Alastair Hugh Graham attended a day school in Leamington Spa and was at Wellington College, Berkshire for a very short time, leaving at fifteen.

[9][7] When Waugh left Oxford one term short of the degree requirements in August 1924, he went to live with Graham in a caravan in a field near Beckley, and from there they went on holiday to Ireland.

[11][9][6] During World War II, Graham participated in the Dunkirk evacuation, joined the Royal Observer Corps and was a liaison officer with the US Navy.

[9][5] From 1937 he lived privately – because of his homosexuality[5] – on the Welsh coast, at Plas-y-Wern Lodge, Gilfachrheda,[9] moving subsequently to a house in nearby New Quay itself.