Final answer:
The organization with the largest membership in Indiana outside of the Southern states in 1922 was the Ku Klux Klan.
Step-by-step explanation:
In the year 1922, the organization that boasted the largest membership number outside of the Southern states in Indiana was the Ku Klux Klan. Though it's a painful part of our history, it's vital to remember that at this time, the Klan was a prominent social and political force, not just in the South, but in many parts of the country. KKK's wide influence in Indiana is a fact often studied in American History courses, and it is important to understand these darker periods in our past to ensure they're not repeated. They targeted multiple demographics, including African Americans, Catholics, Jews, and immigrants, promoting white supremacy and xenophobia.
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