William Alexander (1848–1937) was an author of over ten works, over sixty-five year employee of The Equitable Life Assurance Society of the United States, and a founder of Pi Kappa Alpha.
His paternal grandfather was Archibald Alexander, a preacher and theologian, President of Hampden-Sydney College and founder of Princeton Theological Seminary.
Sunday evening March 1, 1868, William Alexander, Frederick Southgate Taylor, Littleton Waller Tazewell (Bradford), James Benjamin Sclater Jr., Julian Edward Wood, and Robertson Howard founded Pi Kappa Alpha at 47 West Range.
Despite close contact with his uncle and three fellow fraternity founders all involved in medicine, Alexander sought to pursue the realm of business with Taylor and Tazewell.
The youngest and eldest of the original founders, Alexander preserved his interest of Pi Kappa Alpha, including its massive growth and success.