Complex sentence: Each part of the corporation supported every other part, giving strength to the entire organization until 1945, when Frank Stamps, younger brother of V. O. Stamps, left the organization to form the rival Stamps Quartet Music Company.
Split into simpler sentences: Each part of the corporation supported every other part, giving strength to the entire organization. In 1945, Frank Stamps, younger brother of V. O. Stamps, left the organization to form the rival Stamps Quartet Music Company.