A Belfast businessman and artist, Hull was born in Drogheda, Co. Louth. In the 1890s he took painting lessons at the Government School of Art in Belfast. A member of the Belfast Art Society, he was also an exhibitor at the Ulster Arts Club and the RHA. The year 1949 was a very successful one for Hull as the Belfast Museum and Art Gallery staged a retrospective of his work. Hull's trademark was his small wooden panels, especially cut to fit the inside the lid of his paintbox, thereby allowing him ease of travel and to paint en plein air.