Who were the people that came to see Tom in Boston?

After setting up his usury office, Tom was visited by numerous people of all kinds.

His door was soon thronged by customers. The needy and the adventurous; the gambling speculator; the dreaming land jobber; the thriftless tradesman; the merchant with cracked credit; in short, every one driven to raise money by desperate means and desperate sacrifices, hurried to Tom Walker.