Louisiana Revised Statutes Tit. 18, § 1300.4. Signature to recall petition

No person may sign any name to a recall petition other than his own, except in a case where a person is unable to write, in which case the incapacitated person shall affix his mark to the petition and the person circulating the petition shall affix the name and address of the incapacitated person, as well as the date on which the incapacitated person affixed his mark to the petition, provided he does so in the presence of two witnesses who shall also sign their names as witnesses to the mark.