The following resources may be helpful for those researching the history of Wall Street. For those looking to find more information, it may be necessary to individually research particular people, places, and events.
This is a good source for news articles. Search on the exchanges, people, brokers, companies, etc. One good example from 1908 the presents a good laypersons look at the lives of brokers and those that work on the exchange. While one from 1909 looks at the large movement of real estate and the movement of tenants near the New York Stock Exchange and provides a good snapshot (with photo) of what was going on at a a particular time.
This source has 3,866,107 historic newspapers — 4,345 newspaper titles, from around the world with a large number from the United States. It pulls from a number of open source repositories including the Library of Congress' Chronicling America, California Digital Newspaper Collection, Papers Past (New Zealand), Digital Michigan Newspapers, etc.
The Institute was established in 1940 in New York as the National Committee of Investment Companies. It became the National Association of Investment Companies in 1941 and changed to its current name in 1961. By 1943 it published its first annual statistical summary (which evolved into the Investment Company Fact Book).
Hosts various online and in-person exhibits as well as including publications and other content related to the history of finance including the people and history of Wall Street. Exhibits include "Women of Wall Street," "Hamilton's Legacy," "America's First IPO," and many others.
FINRA is not part of the government. They are a not-for-profit organization authorized by Congress to protect America’s investors and is dedicated to investor protection and market integrity through effective and efficient regulation of broker-dealers. There are studies, news release, and statistics & data, etc.