Reginald Haggar was born in Ipswich and studied at Ipswich School of Art and the Royal College of Art. In 1929 he became Minton's Assistant Designer, becoming Art Director 6 months later. He held this post until 1939, designing modernist shapes and patterns. After leaving Minton, Reginald Haggar turned to teaching, becoming Master-in-Charge at Stoke School of Art from 1935 to 1941, and at Burslem School of Art from 1941 to 1945.

After leaving this post he became a freelance painted and lecturer. He died in 1988.