After living in a dugout through the first winter, John Ritchie built his home around 1856, a modest limestone structure that stands in what is today 1116 SE Madison Street. Ritchie was very involved in the Topeka community, being selected to serve in two of the four Kansas Constitutional Conventions: the Leavenworth convention in 1858 and the Wyandotte Convention in 1859. Both John and Mary were devout abolitionists and would play a big part in what would become known as Bleeding Kansas.
Bleeding Kansas was the time when the United States Government let the citizens of Kansas decide whether Kansas would be a Slave State or a Free State. This caused many bouts if infighting in the territory, with both sides resorting to violence and bloodshed. Kansas was particularly dangerous for runaway slaves, as they were hunted down by their former owners, federal law enforcement, and the slave catchers along the riverbanks. The John Ritchie soon opened his home to slaves as part of the underground railroad and joined a group later called the Topeka Boys.
One notable event during this time was when John helped a fellow abolitionist and eleven slaves avoid detection by federal troops and allowed them to escape into Nebraska. That abolitionist was John Brown. When the American Civil War broke out, John enlisted in the Union Army, where he quickly rose to the rank of lieutenant colonel and served in the 5th Regiment Kansas Volunteer Cavalry and the 2nd Regiment, Indian Home Guard. He later got a brevet promotion to Brigadier General in 1865.
After the civil war, many African Americans migrated to Kansas to settle down, and John Ritchie sold many of them land around his homestead. A school for black children was soon built on some of the land that Ritchie sold, known as Monroe School, which would later become the center of attention in the Brown v. Board of Education court case.