Final answer:
There is no precise record of the number of Church of Jesus Christ of Latter-day Saints members who died during their expulsion from Jackson County, Missouri in the 1830s, as historical accounts vary and concrete demographic data is lacking.
Step-by-step explanation:
The expulsion of members of the Church of Jesus Christ of Latter-day Saints from Jackson County, Missouri occurred in the early 1830s. While the event was certainly traumatic and involved instances of violence, there are no precise records documenting the number of members who lost their lives as a direct result of expulsion. It's known that tensions between church members and Missouri settlers escalated, leading to conflicts like the 1833 mob violence and the 1838 Missouri Mormon War; however, specifics on fatalities are scarce and often based on historical accounts rather than concrete demographic records.