Marcus Aurelius Smith was an American attorney and politician who served eight terms as Arizona Territorial Delegate to Congress and as one of the first two Senators from Arizona. As a Delegate, he was a leader in the effort to gain statehood for Arizona. His non-voting status, however, minimized his influence with only 35 of the 277 bills he introduced into the House of Representatives being signed into law. Lack of a voice in the United States Senate further weakened his efforts as he managed to get Arizona statehood bills passed by the House only to see the legislation blocked in the Senate. Beyond his efforts for statehood, Smith worked to have government buildings constructed and to provide relief to his constituents affected by either man-made or natural misfortunes. His efforts to provide relief to the citizens of Arizona did not extend to the indigenous population, for whom Smith expressed great animosity.

Cynthiana is a home rule-class city in Harrison County, Kentucky, in the United States. The population was 6,402 at the 2010 census. It is the seat of its county.