Wis. Stat. § 111.53
Within 30 days after July 25, 1947, the commission shall appoint a panel of persons to serve as conciliators or arbitrators under this subchapter. No person shall serve as a conciliator and arbitrator in the same dispute. Each person appointed to said panels shall be a resident of this state, possessing, in the judgment of the commission, the requisite experience and judgment to qualify such person capably and fairly to deal with labor dispute problems. All such appointments shall be made without a consideration of the political affiliations of the appointee. Each appointee shall take an oath to perform honestly and to the best of the appointee's ability the duties of conciliator or arbitrator, as the case may be. Any appointee may be removed by the commission at any time or may resign his or her position at any time by notice in writing to the commission. Any vacancy in the panels shall be filled by the commission within 30 days after such vacancy occurs. Such conciliators and arbitrators shall be paid reasonable compensation for services and for necessary expenses, in an amount to be fixed by the commission, such compensation and expenses to be paid out of the appropriation made to the commission by s. 20.425 upon such authorizations as the commission may prescribe.
Wis. Stat. § 111.53