He studied under Tom Wostyn at Heaton, briefly under Sir Hubert Herkomer at Bushey, and finally under Henry Tonks at the Slade School of Art.
In his heyday Roworth greatly influenced the South African art scene, endorsing a conservative approach.
In 1938, he was appointed to the chair of the Michaelis School of Fine Art in Cape Town and held the position until 1953.
[1]: 305 In 1909 Roworth was commissioned to produce a painting of the National Convention, a 5m x 6m work depicting the 33 men who were architects of the Union.
Roworth's next task was painting, what were possibly the first frescoes in South Africa, in St Phillips Church in Cape Town.