Margaret Marian Grubb was born in Lima, Ohio in 1922. At an early age, her family moved to Denver, Colorado. Throughout her childhood and formative years, she studied the organ, violin, and piano. Dorothy Milne and Howard Reynolds taught her violin and Dalies Franz and her mother and musician, Margaret Day Grubb, taught her piano. In 1940, she became principal violinist of the Denver Junior Symphony and a member of the Denver Civic Symphony. From 1939 to 1943, she attended the University of Denver on a scholasic scholarship. During her college career, she was an active member of the University Orchestra and played piano for the University Trio and University Radio Program. In 1943, she attended the Music School at Yale University and studied piano under Bruce Simonds, Blanche Dingley-Mathews and Matthew Bartholomew. At Yale, she performed professionally at venies in Connecticut and New York. She had two solo shows at the New Haven Symphony. Additionally, she garned numerous awards at the university such as the Ditson Senior Class Fellowship, the Ditson Graduate Fellowship, and the Julia S. Lockwood Scholarship for Excellence in Piano Playing. In 1947, she received her Master in Music from Yale University and joined the music faculty at the North Texas State (now the University of North Texas) College of Music. She taught at UNT for thirty-three years. During her teaching career, she continued performing at venues around the southwest region. She also taught the Opera Theater Workshop in Houston, Texas and the Opera Department of the Berkshire Music Center at Tanglewood, Massachusetts in 1958, both with musician Boris Goldovsky.