Paul Veronese Ulen and his wife Jean both studied with Fredrick Gottwald, Henry Keller and Frank Wilcox at The Cleveland School of Art from 1916-1920. In 1922, he attended the Slade School in London studying under Henry Tonks. Tonks emphasized structure and a classical approach to drawing, which stayed with Ulen throughout his career even though later works reflected cubist and modernist tendencies both in design and color.
Paul a prolifical watercolorist in a large format left many of his pictures unsigned which were catalogued by Jean. Both Paul and Jean were considered very successful teachers while at West Technical High School in Cleveland because their many students were consistent prize winners.
A major article "Jean and Paul Ulen and the Slade School Legacy" appeared in the February 2004 issue of American Art Review by Christopher Bedford and Marianne Berardi.