§ 26 O.S. § 26-5-111.1Declaration of Candidacy - Signature of candidate

To be valid, a Declaration of Candidacy submitted to the
secretary of any county election board or to the Secretary of the
State Election Board shall be signed by the candidate in writing.
The candidate shall personally subscribe his name to the Declaration
of Candidacy, and no agent, representative or employee of the
candidate may sign on the candidate's behalf. The signature must be
the original, handwritten signature or autograph of the candidate.
No facsimile, reproduction, typewritten or other substitute
signature or autograph will be valid.