Mississippi Code Title 33. Military Affairs § 33-5-5

(a) Persons exempt from military service by the laws of the United States;

(b) All regularly or duly ordained ministers of religion and rabbis, installed according to the rules of their sect, and all students preparing for any such ministry in recognized theological or divinity schools;

(c) All state officers; executive, legislative and judicial;

(d) All county, municipal, and district officers;

(e) All persons actually employed as teachers in any established school, college or university;

(f) Such classes of persons, grouped by age and profession or vocation, as the Governor may deem necessary for the maintenance of the civilian population of the state and whose exemption will be compatible with the military needs of the country. The Governor shall make or remove such exemption as he may see fit by general public proclamation.