William Ongley Miller was born in Haywards Heath, Sussex, England on 21 October 1883 and studied at Brighton School of Art from 1900 to 1906, and at the Royal College of Art in London from 1906 to 1911. He was awarded an RCA travelling scholarship in architecture in 1908, and the Owen Jones travelling scholarship in 1910.

He held a number of teaching posts including Sheffield School of Art from 1911 to 1920; Manchester School of Art from 1920 to 1924; and Gravesend School of Art where he was headmaster from 1924 to 1929.

He exhibited at the Royal Academy in London in 1923, 1925, 1930 and 1942. He also exhibited at the Walker Art Gallery in Liverpool. A watercolour of the Cortille of the Palazzo Vecchio in Florence by him is illustrated in Architectural Review May 1910 (p.194).

Miller lived in Gravesend, Kent, and in Roshervile, Kent, and died in Islington, London on 10 May 1960. His address at the time of his death was 38 Canonbury Park South, London

Examples of his work is included in the permanent collections of Manchester art Gallery; the National Trust of Scotland; and the Civic Centre, Gravesham Borough Council.

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