Louisiana Revised Statutes Tit. 23, § 1251. Persons conclusively presumed dependents

(1) A surviving spouse upon a deceased spouse with whom he or she is living at the time of the accident or death.

(2) A child under the age of eighteen years (or over eighteen years of age, if physically or mentally incapacitated from earning) upon the parent with whom he is living at the time of the injury of the parent, or until the age of twenty-three if enrolled and attending as a full-time student in any accredited educational institution.

(3) A child under the age of eighteen years, or over eighteen years of age, if physically or mentally incapacitated from earning, with a valid child support order from a court of competent jurisdiction against the deceased parent, regardless of whether child support is actually being paid, or until the age of twenty-three if enrolled and attending any accredited educational institution as a full-time student.