2023 Missouri Laws 249.770 – First election of supervisors — terms

2022 Missouri Laws 249.770 – First election of supervisors — terms.

2020 Missouri Laws 249.770 – First election of supervisors — terms.

2018 Missouri Laws 249.770 – First election of supervisors — terms.

2016 Missouri Laws 249.770 – First election of supervisors–terms

2015 Missouri Laws 249.770 – First election of supervisors–terms

2014 Missouri Laws 249.770 – First election of supervisors–terms

2013 Missouri Laws 249.770 – First election of supervisors–terms

2009 Missouri Laws 249.770 – First election of supervisors–terms