May Scott was a paying student at the Leach Pottery. Harry Davis was running the pottery when Bernard and David were away; he taught May to throw in 1936 and they married the following year. They started their own pottery in South Kensington, London.

Shortly before the second world war Harry was made Head of the Art School at Achimota College, Gold Coast (now Ghana). He stayed until 1942 successfully finding local materials for clay and glazes. May, in the meantime, had been helping Michael Cardew at Wenford Bridge, and it was at Harry's suggestion that Cardew was appointed to succeed him when he left.

After the war Harry and May set up Crowan Pottery in Cornwall and ran it until 1962 when they moved to New Zealand. They ran the Crewenna Pottery there for ten years and then spent seven years in the Peruvian Andes working on an aid project. They returned to New Zealand where they stayed for the rest of their lives. Harry died in 1986 and May in 1995.

The Davis's approach to pottery was not in the strict Leach tradition. While they disliked many of the aspects of mass production and the techniques used in large-scale manufacture, they were aware that technology had its place in the small workshop and were quite happy to use machinery when it could perform a task more efficiently, quicker or better than doing it by hand. They made stoneware of very high quality and were proud that they produced stoneware that was extremely durable - a very desirable quality for household goods. Their studio pieces were usually brush or wax resist decorated and sometimes incised.