(Gallatin, MO) — A senior missionary of The Church of Jesus Christ of Latter-day Saints has died in a lawn mower accident in Missouri. Elder Brent Blackburn was operating a mower on a hillside at the church’s Adam-ondi-Ahman historic site in Gallatin Saturday when it overturned, authorities said. He had been serving at the site with his wife since April 2025. They are from the Helper Utah Stake.