Born in Philadelphia in 1906, Gill studied at the University of Pennsylvania in 1929, and with Charles Woodbury in 1932.  He also studied painting at the Tyler School of Art in 1953.

Gill's works were first presented through the Philadelphia Watercolor Club's traveling exhibitions in 1942. Gill's exhibitions went on to include the Metropolitan Museum of Art, American Academy of Arts and Letters, Pennsylvania Academy of the Fine Arts, Butler Art Institute, the Philadelphia Sketch Club, the Woodmere Art Gallery and one-man shows at the Philadelphia Art Alliance.

His works are in many collections such as the Philadelphia Museum of Art, Lehigh University, Temple University, and Temple School of Pharmacy.  This strong collegiate bond was evidenced also in his love for teaching, doing so from 1955 until 1974 at various institutions including the Philadelphia College of Art.  Most of Gill's paintings were influenced by his love of jazz, from his abstract compositions to his improvisations with flowers, to his theories on landscapes.

Gill died in 1974 at the age of 68.