William Gillock was an American music teacher and composer who began learning piano at a young age. He studied piano and composition at Central Missouri Methodist College in Fayette, Missouri, under N. Louise Wright. Recognizing his talent, Wright encouraged him to pursue a career in music. From early on, Gillock's compositions showed originality in harmony and texture, along with his signature melodic beauty. Gillock believed that melody and lively rhythm were key to making music that students enjoyed learning. He shared his ideas with many teachers and students through hundreds of workshops held across the United States. In his works, his strong sense of melody and rhythm stood out, reflecting his main focus when composing music for students. During the early part of his career, Gillock lived in New Orleans where he ran a large teaching studio and was active in music groups. Later, he stopped private teaching to focus on composing, leading workshops, and judging music events. After moving to Dallas, he served as the sole judge for the Junior Pianists’ Guild for twenty-one years, guiding many young pianists. Gillock received the National Federation of Music Clubs' Award of Merit for Service to American Music five times. His achievements are noted in several biographical dictionaries. His music remains popular at piano festivals worldwide and has gained recognition in countries like Japan and Germany. He passed away in Dallas in September 1993 at the age of 76 after a long illness.