Massachusetts Republican Party
The Massachusetts Republican Party was founded in 1854. Drawing together abolitionist and nativist anti-Catholic elements, it quickly became the dominant political force in the state and a powerful arm of the national Republican Party. Significant founding figures include Senator Charles Sumner, formerly of the Free Soil Party, and Speaker of the House Nathaniel Prentiss Banks, formerly of the American Party. 
At the time of the Republican Party's founding in 1854, all of Massachusetts's congressional representatives but Sumner were members of the nativist Know-Nothing Party. However, Banks's role as chairman of the 1856 Republican National Convention, his active support for the Republican presidential nominee John C. Frémont in 1856 and his focus on anti-slavery legislation as Speaker put him at odds with his party. Following the Democratic victory in the 1856 elections and the Dred Scott case in 1857, the national American Party organization collapsed, and most Northern members joined the nascent Republicans. In 1857, Banks ran as a Republican against incumbent Know-Nothing Governor Henry J. Gardner and won a decisive victory.
History of Wisconsin
Between the 1840s and 1860s, settlers from New England, New York and Germany arrived in Wisconsin. Some of them brought radical political ideas to the state. In the 1850s, stop-overs on the underground railroad were set up in the state and abolitionist groups were formed. One such group was the Republican party. On March 20, 1854, the first county meeting of the Republican Party of the United States, consisting of about thirty people, was held in the Little White Schoolhouse in Ripon, Wisconsin. Ripon claims to be the birthplace of the Republican Party, as does Jackson, Michigan, where the first statewide convention was held. A notable instance of abolitionism in Wisconsin was the rescue of Joshua Glover, an escaped slave from St. Louis who sought refuge in Racine, Wisconsin in 1852. He was caught in 1854 by federal marshals and put in a jail at Cathedral Square in Milwaukee, where he waited to be returned to his owner. A mob of 5,000 people led by Milwaukee abolitionist Sherman Booth, himself a "Yankee" transplant from rural New York, sprung Glover from jail and helped him escape to Canada via the underground railroad.