That california ought to be admitted into the union without restriction as to the inclusion or exclusion of slavery.
that as slavery does not exist by law, and is not likely to be introduced into any of the territory acquired by the united states from the republic of mexico, it is not in the interest of congress to pass a law either establishing or prohibiting it in the land acquired from mexico.…
that it is not wise to abolish slavery in the district of columbia while slavery continues to exist in maryland without the consent of that state, the consent of the people of the district, and without just payment to the owners of slaves within the district.
that, however, it is wise to prohibit in the district of columbia, the bringing-in of slaves from other states either to be used in the district or to be sold there for use in other states.
that stronger provision ought to be made by law for the capture and return of slaves who may have escaped into any other state or territory in the union.
that congress has no power to prohibit or prevent the trading of slaves between states. this depends completely on the laws of each individual state

based on this document, what is one way in which these proposals favored the free states, mostly located in the north?

answer; i believe the correct answer is (the willamete valley);

the progressive era is a period of widespread social activism and political reform across the united states that spanned from the 1890s to the 1920s.[1] the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.

the movement primarily targeted political machines and their bosses. by taking down these corrupt representatives in office, a further means of direct democracy would be established. they also sought regulation of monopolies (trust busting) and corporations through antitrust laws, which were seen as a way to promote equal competition for the advantage of legitimate competitors.

many progressives supported prohibition of alcoholic beverages, ostensibly to destroy the political power of local bosses based in saloons, but others out of a religious motivation. at the same time, women's suffrage was promoted to bring a "purer" female vote into the arena.a third theme was building an efficiency movement in every sector that could identify old ways that needed modernizing, and bring to bear scientific, medical and engineering solutions; a key part of the efficiency movement was scientific management, or "taylorism".

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