What were the people called who rushed into Kansas after The Kansas Nebraska act was passed?

The people who rushed into Kansas after the Kansas-Nebraska Act was passed in 1854 were known as "Border Ruffians" and "Free-Staters." Border Ruffians were pro-slavery activists from neighboring Missouri who sought to influence the outcome of Kansas's statehood, while Free-Staters were those who opposed the expansion of slavery into the territory. This influx led to violent clashes known as "Bleeding Kansas," as both groups tried to assert control over the territory.