how did hooverville get its name??

The term “Hooverville” refers to the shantytowns and homeless camps that sprung up in the U.S. during the Great Depression (1929 through the late 30s).
Herbert Hoover, a Republican, was the President at the time. Many people blamed him and his administration for the economic collapse: businesses and industries failed, the stock market crashed, more than 15 million people lost their jobs and, subsequently, homelessness skyrocketed. They had to live wherever they could find shelter. Eventually, many gathered in small colonies on the outskirts of cities where they set up tents and shacks or squatted in abandoned buildings.
President Hoover didn’t believe that the government had any responsibility to help these citizens, and that they should solve their own problems rather than seeking federal assistance. Journalist Charles Michelson coined the term “Hooverville” in 1930, and it caught on. (Hoover’s name became an all-purpose term for many symbols of poverty, as well: a newspaper was a “Hoover blanket”, cardboard shoe-repair inserts were “Hoover leather”, etc.)
http://depts.washington.edu/depress/hooverville.shtml

https://www.history.com/topics/great-depression/hoovervilles