He studied at the Halifax Technical College School of Art from 1909 to 1913, and gained distinction in drawing in the 1914 the Board of Education exams, being placed second in England.
His studies at the Royal College included stained glass design under Professor Anning Bell and he executed several commissions before moving to New Zealand.
[2][3] Following medical advice, he travelled to New Zealand early in 1922, taking up a three-year teaching position at King Edward Technical College School of Art in Dunedin as part of the La Trobe scheme.
Other artists moving to New Zealand under the scheme included R. N. Field, Francis Shurrock, Christopher Perkins and Roland Hipkins.
Ellis' notable ex-pupils include Vivian Lynn (1944–45), Valerie Beere, John Drawbridge, Alan Pearson, Don Peebles, Beverley Shore Bennett, Guy Ngan and Gordon Walters.