(1) There is created a judicial conference for the state whose membership shall consist of all judges of courts of records whose salary is paid in whole or in part out of the state treasury, including retired judges.
(2) There shall also be included in the membership of the judicial conference active and retired judges who are licensed attorneys at law of all probate courts created by private acts of the state, in counties having a population of three hundred thousand (300,000) or more, according to the federal census of 1960 and any subsequent census.