William Thacher Longstreth (January 1, 1920 – April 11, 2003) was a Republican member of the Philadelphia City Council who was perhaps best known for his long tenure and unique image. Longstreth, a graduate of Princeton University, was an eighth-generation Philadelphian born to Quakers William Collins (b. 1882) and Nella (née Thacher) Longstreth, who married in 1917. William C. Longstreth owned the Longstreth Motor Car Company and his family lived in Haverford, Pennsylvania, and was affluent until the Wall Street Crash of 1929. Thacher was a cousin of President Herbert Hoover and his maternal grandmother, Ella Hoover Thacher was the president of the Woman's Christian Temperance Union for many years. In 1970, he led the Philadelphia Chamber of Commerce and spearheaded the drive to hold the