Louisiana Revised Statutes Tit. 38, § 1778. Manner of voting

Each voter's name shall be written on his ballot. The commissioners of election shall receive the ballot of each voter, check his name on the list of voters furnished by the registrar as having voted, enter and number his name on the list of taxpayers voting, and immediately deposit his ballot in the ballot box, reserving to each voter the right to so fold his ballot that it shall not be known at the time of voting whether he voted for or against the proposition or propositions submitted.