William Harry Jefferis (11 April 1867 – 7 September 1947) was an Australian-born architect who practiced principally in Perth and later in Albany in Western Australia.
The family returned to Sydney to aid his father’s ailing lungs and Harry Jefferis attended Newington College from 1883 until 1885.
[2] After working on sheep stations in New South Wales and New Zealand Jefferis returned to Sydney to become an architect.
He was articled to his future brother-in-law Harry Chambers Kent[3] and studied architecture at Sydney Technical College.
Before returning to Australia via a sketching tour in Europe, Jefferis submitted an original design as a competitor for the annual Soane Medal, open to the profession throughout the British Empire, and was awarded a medallion for third place.