
Morton Earthenware Company was in operation for only two years, 1915 and 1916. All production ceased from 1917-1920. During World War I many employees were drafted or enlisted in the Armed Forces. Raw materials were nearly impossible to procure because of their diversion to the war effort. With shortages in both manpower and material, the pottery closed down.
Three of John Rapp's sons used one of the buildings for experimental art pottery development during the war. They took their art pottery manufactory to Evanston, Illinois, in 1920. There they were closer to raw material sources and it was near a more sophisticated market. That art pottery operation was short-lived because the brothers took off to Oregon to pan for gold.
The Rapp Brothers Pottery did not reopen after the war. As it sat idle, Samuel and Christian struggled to keep the tile works, now known as Morton Tile Works, in operation. In 1920 Matthew decided to leave his work in farm machinery and return to the pottery. Matthew and his four sons renovated the old structure and started their new business which they named Cliftwood Art Potteries.