William O. Smith was born in Greensburg, Indiana on June 12, 1946; admitted to the Indiana bar in 1973; graduated from Luther College, Decorah Iowa (BA, 1968) and Indiana University Law School Indianapolis (cum laude, 1973).
Law clerk for the Indiana Supreme Court Disciplinary Commission (1970-1973); admitted to practice before the United States Supreme Court(1985); established and maintained a general practice of law for 27 years; served six terms as the elected Prosecuting Attorney for Decatur County, serving twelve years as a full-time prosecutor; served on the board the Indiana Prosecuting Attorney Council and the board of the Association of Indiana Prosecuting Attorney, also as its president.
ARC of Indiana published his manuscript on legal and estate planning issues for parents with disabled children that was presented though out Indiana; was also a major participant in the creation of the Indiana ARC Master Trust.
He is active in community and philanthropic efforts, was named a Rotary Paul Harris Fellow and was inducted into the Stephen Decatur Society for his philanthropic work in Decatur County which includes creating numerous charitable organization in Decatur County and serving on numerous boards of community organizations that include presidents of the Greensburg-Decatur County Library, Decatur County Community Foundation and Developmental Services, Inc., Columbus. He served in the US Army (1968-1970) as an infantry sergeant.