California has the most electoral votes because it has the biggest population. 50 million rounded people live there. In comparison, Texas only has about 28 million or so.
The salaries increased, sometimes drastically some times slowly. An average worker in the 1900 had a salary between 256$ and $439 per year, while in 1929 the average salary was between 752$ and 1164$ per year. This all stopped and became much much worse when the great depression hit in the thirties which left the economy devastated.
What is the south called during the civil war: The confederate states of America