Your father always wanted a son. I hope the fool has wisdom enough to recognize his good fortune.
― Cornelius Slate, speaking to Vivian Monroe[src]

Sergeant Monroe was a citizen of Columbia, who served in the United States Army along with Cornelius Slate during the Spanish-American War and in the Columbian Army during the Boxer Rebellion. Monroe is also the father of Lance Corporal Vivian Monroe.


Monroe was part of the US Army and fought under the leadership of Cornelius Slate, who lead him through the Battle of San Juan Hill in 1898. Much like Slate, Monroe moved to the floating city of Columbia where he at some point had a daughter, Vivian Monroe, although he had always wanted a son. Monroe was also given the rank of Sergeant. Before Columbia bombed Peking, Monroe participated in the Boxer Rebellion with Slate.[1] During the battle, 30 of Slate's comrades who fought under his command were killed.[2] It is unknown if Monroe was among the men who perished during the battle.

His daughter, Vivian Monroe evidently followed in her father's footsteps and joined the Columbian Army in which she served along with Cornelius Slate.[1]


  1. 1.0 1.1 Vivian Monroe's Voxophone: A True Soldier
  2. Public Address Announcement by Cornelius Slate in the Hall of Heroes: "COMSTOCK WASN'T THERE! The Boxers took my eye and thirty of my friends! Is there even a stone to mark that sacrifice?!"
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