The Commission shall appoint a clerk, who shall serve during its pleasure. The Commission members and clerk shall be sworn to the faithful discharge of the duties of their offices and, before entering upon the same, shall file a certificate of their oaths for record in the Office of the Secretary of State. (Amended 1959, No. 329 (Adj. Sess.), § 39(b), (c), eff. March 1, 1961.)