Complex sentence: Cosgriff was appointed to the board of directors of the Reconstruction Finance Corporation by President Harry S. Truman in 1950, on which he served from October 1950 to May 4,1951.
Split into simpler sentences: Cosgriff was appointed to the board of directors of the Reconstruction Finance Corporation by President Harry S. Truman in 1950. He served on the board from October 1950 to May 4,1951.