Arthur Windham Baldwin, 3rd Earl Baldwin of Bewdley (22 March 1904 – 5 July 1976) was a British businessman, RAF officer, and author. His books included a combative defence of the posthumous reputation of his father, Stanley Baldwin, the former prime minister of the UK, in which he severely criticised several leading historians of the time.

Baldwin was the younger son of Stanley Baldwin, later 1st Earl of Baldwin of Bewdley, and his wife, Lucy, née Ridsdale. He was known to his family and friends by the nickname "Bloggs".^[1]

He was educated at Eton College and Trinity College, Cambridge.^[2]

In the inter-war years Baldwin was a director of several companies, including the Round Oak Steel Works, Redpath, Brown, and the Great Western Railway,^[3] and between 1938 and 1974 he was a director of the Equitable Life Assurance Society. He served in the Royal Air Force during World War II.^[4] Despising patronage, he successfully set out to gain a commission through the ranks.^[5]

Baldwin published three books in the 1950s and 60s. The first was a biography of his father, written as a result of his strong feeling that the official biography by G. M. Young did not do Stanley Baldwin justice.^{[n 1]} Baldwin strongly criticised not only Young, but other historians, including John Wheeler-Bennett, D. C. Somervell and Sir Lewis Namier for, in his view, misjudging the former prime minister.^[7] His second book, The Macdonald Sisters was a study of the four daughters of the Rev G. B. Macdonald: Alice married John Lockwood Kipling (Rudyard Kipling's parents); Georgiana married Edward Burne-Jones; Agnes married Edward Poynter; and Louisa married Alfred Baldwin (Stanley Baldwin's parents, thus Windham's grandparents).^[4] In 1967 he published a memoir of his wartime experiences. The reviewer in The Times, commented, "He tells it all with amusement and skill … the atmosphere of the RAF seeps unmistakably through."^[5]

On 25 August 1936, Baldwin married Joan Elspeth Tomes, daughter of Charles Alexander Tomes, merchant in the Far East with Shewan, Tomes & Co.^[9][10] They had one child:^[11]

• Edward Alfred Alexander Baldwin, 4th Earl Baldwin of Bewdley, (3 January 1938 – 16 June 2021)^[11]

The 3rd Earl Baldwin of Bewdley died on 5 July 1976, aged 72.^[12] The Countess Baldwin of Bewdley died in 1980.^[11]

• My Father: The True Story. London: G Allen and Unwin. 1955. OCLC 458593350.
• The Macdonald Sisters. London: P Davies. 1960. OCLC 1667706.
• A Flying Start. London: P Davies. 1967. OCLC 5058823.