Hyrum H Blackwell
In some sources his given name is listed as "Hiram."
According to the 14 April 1848 account recorded in Journal History, Hyrum had been called on a mission to England, but that was countermanded and he was sent to the Valley to raise grain for the Saints.
His name does not appear on any Utah, Nevada, or California census, and further research is needed to obtain his birth as well as the date and place of his death.