Dr. John Gergely passed away on July 26, 2013 after a long and distinguished career. His publications spanned 67 years. He founded the Department of Muscle Research in the Retina Foundation (which later became the Boston Biomedical Research Institute) and served as director for 34 years. Dr. Gergely served on the editorial boards of ten scientific journals. He was elected as a Fellow of both the Biophysical Society and the American Association for the Advancement of Science. Dr. Gergely made major contributions concerning muscle protein structure and function. He was best known for his work on the troponin complex. The insights of John and his associates have provided the foundation for our understanding of calcium regulation in skeletal and cardiac muscle.