Collaborative Presidents list.

[jcbspidermonkey]

1880: Robert Todd Lincoln/James Garfield
1882: J. Warren Keifer/ Vacant*

*- Kiefer, the Speaker of the House, assumes the presidency when both R.T. Lincoln, and Garfield are killed by a bomb hidden under the stage at a joint speech in Richmond, Va. It was planted by the son of an ex-confederate soldier.

[jcbspidermonkey]

1880: Robert Todd Lincoln/James Garfield
1882: J. Warren Keifer/ Vacant*
1884: Chester Arthur/Grover Cleveland
1885: Grover Cleveland/ Vacant**

*- Kiefer, the Speaker of the House, assumes the presidency when both R.T. Lincoln, and Garfield are killed by a bomb hidden under the stage at a joint speech in Richmond, Va. It was planted by the son of an ex-confederate soldier.

**- Arthur died March 4th, the day of the inauguration from Bright's disease. He never takes oath of office, and Cleveland become the next president.