Harold James Youngman was born in Bradford, Yorkshire, England on 17 October 1886.

He studied under Frederick Shelley at Plymouth School of Art; under Édouard Lanteri at the Royal College of Art in London from 1908 to 1912; and at the Royal Academy Schools in London in 1911-12. He then worked as chief assistant to the sculptor William Goscombe John (1860-1952) in 1912. He also taught sculpture at Hornsey School of Arts and Crafts.

Youngman began exhibiting at the Royal Academy in London in 1915 and continued to do so regularly until 1956. He also exhibited at the Royal Glasgow Institute of the Fine Arts; Leeds City Art Gallery; Aberdeen Artists' Society; Royal Scottish Academy in Edinburgh; and the Walker Art Gallery in Liverpool.

He was elected an Associate of the Royal Society of British Sculptors (ARBS) in 1923 and a Fellow of the Royal Society of British Sculptors (FRBS) in 1938. He was also elected a member of the Art Workers Guild in 1931.

In 1914 he married Dorothy Ruth Wainwright (1887-1957) an artist. During World War One he served in the Honourable Artillery Company from 1916 to 1919.

His address was given as 54 Lamont Road, London in 1911; 45 Hamilton Gardens, St. John's Wood, London in 1920 and 1922; 18 Paulton's Square, Chelsea, London in 1923 and 1925; and 6 Edith Grove, London in 1929 and 1968. His studios were located at The Studio, 34 St John's Wood Terrace, London in 1915l and at at 1 Cedar Studios, Glebe Place, London in 1926-27. He died in London on 7 December 1968.

_{Text source: Art History Research net (AHR net)}