John S. Rice began his career in state politics, rising to prominent leadership roles within the Pennsylvania State Senate. He transitioned from state politics to roles in state government, including managing state property and supply, and later serving as Secretary of the Commonwealth. Rice also held significant positions within the Democratic Party and represented the United States as Ambassador to the Netherlands. His long-term commitment to education is evidenced by his service as a trustee of Gettysburg College.

John S. Rice's political career reveals a unique blend of local agricultural interests and international diplomacy, with a surprising alignment with opposing factions on environmental regulations. His tenure as Secretary of the Department of Property and Supplies highlights an unexpected focus on state property management, while his agricultural background and role as a trustee of Gettysburg College showcase a commitment to education and regional economic interests. Rice's diplomatic role as U.S. Ambassador to the Netherlands adds another layer to his multifaceted political identity.