Barlow returned to England, married Marie Elizabeth Johnson (an American Citizen) in London in 1891, and then settled in St. Ives, Cornwall in 1892. In 1896, Barlow was made a member of the Royal Society of British Artists (RBA) and, in 1916, the Royal Institute of Oil Painters (ROI). He received medals at both the 1899 Paris Salon (Gold Medal-3rd Class) and the 1900 Paris Exposition. Many of his later scenes are from the Lamorna Valley, Cornwall, where he had a studio. His 1909 painting, "Spring, Lamorna" was considered his best work to date.