Born June 28, 1807, in Charlotteville Township, Norfolk County, Ontario, Canada, to Peter Teeple and Lydia Mabee, both pioneers of Canada. Simon married Mary Ann Tisdale in Charlotteville on October 2, 1826. Simon Peter went at an early age to New York, and there graduated as a physician, and took up the practice of medicine on the Illinois river, 20 miles from Peoria. In 1837 he came to Iowa with his brother, his wife, and three children, Luke, Theodore, and Ralph. He settled on the English river in Washington county, 16 miles south of Iowa City, and took up a claim while practicing medicine. He was prominent among the early settlers and served in the House of Representatives of the Third Legislative Assembly of the Iowa Territory from 1840 to 1841, representing Washington County. After leaving the Legislature he removed to Iowa City and opened a drug store, but one day a few weeks afterward took a violent cold, and in four days passed to his last home. He died in March 1841 in Washington County, Iowa.