Dr. Jay Dayton Smith, commonly known as "J. D.," was born in Monona, Iowa on March 22, 1895. He graduated from the University Minnesota College of Dentisty in 1922 and had his first practice in a mining region of Minnesota. In 1927 Dr. Smith moved to Las Vegas, where he operated a dental practice located at 1st and Fremont streets for over four decades until his retirement. Dr. Smith was actively involved with several community organizations including the American Legion; the Clark County Democratic Central Committee, where he was twice elected chairman; and the Elks Lodge. Dr. Smith served on the Clark County School District Board of Education from 1935 to 1953. In 1964, he had the distinction of having the first junior high school in North Las Vegas, J. D. Smith Junior High, named after him. Dr. Smith was also a member of the Nevada State Board of Medical Examiners and was the first Las Vegas dentist to be appointed to that body. Dr. J. D. Smith passed away in 1984 at age of 89.
Source:
http://www.jdsmithms.org/pdf/JDSmithBio.pdf