Charles Elbridge Cox was an American lawyer and judge who became the 55th justice of the Indiana Supreme Court, serving from 1911 to 1917. Elected as a Democrat in the Fall of 1910, he was Chief Justice by the end of his six-year term. The "Marshall Constitution" case and the "Technical Institute" case were among the important decisions made by the court during his tenure. As a judge in the Indiana Supreme Court and in lower courts, he never had a decision reversed.

Thomas Riley Marshall was an American politician who served as the 28th vice president of the United States from 1913 to 1921 under President Woodrow Wilson. A prominent lawyer in Indiana, he became an active and well known member of the Democratic Party by stumping across the state for other candidates and organizing party rallies that later helped him win election as the 27th governor of Indiana. In office, he attempted to implement changes from his progressive agenda to the Constitution of Indiana, but his efforts proved controversial and were blocked by the Indiana Supreme Court.