Ahlberg, Allan

Ahlberg, J. The old joke book, 1977, c1976.
Monkey do! 1998: CIP title page (Allan Ahlberg) data sheet (born in 1938)
Authors' Licensing and Collectors Soc. database, 28 Feb. 2005 (Allan Ahlberg, born 5 June 1938)
Everybody was a baby once, and other poems, 2010: ECIP title page (Allan Ahlberg) data view (born in Croydon; lives in Bath, England)
Wikipedia, viewed August 27, 2025: Janet and Allan Ahlberg page (Janet Ahlberg and Allan Ahlberg (born 5 June 1930 in Croydon; died 29 July 2025) were a British married couple who created many children's books, including picture books that regularly appear at the top of most popular lists for public libraries; they worked together for 20 years until Janet's death from cancer in 1994; the Ahlbergs both trained as teachers at Sunderland Technical College, where they met during the 1960s and married in 1969; as of 2017, he was the author of more than 150 published books, including two in 2004 illustrated by his daughter Jessica) https://en.wikipedia.org/wiki/Janet_and_Allan_Ahlberg