This research guide is a version of an onsite class taught entitled So.....you want to research "old" companies at the Library of Congress. Because that class was specifically focused on using the Library's resources, it has been modified into a web-based guide for those that cannot come to the Library of Congress. While many of these resources are specific to the Library, many others may also be available in local libraries and research institutions.
Of course, the resources included here are just a START and will hopefully provide a better sense of the types of sources used regularly and in what situations. There are also a few tips that may make your search a bit easier. If you are interested in the bigger picture of business history, see our guide Business History: A Resource Guide.
So bring your creativity and patience.
By putting the puzzle pieces together, a more cohesive picture will emerge. In the following article written for the "Inside Adams" blog, you will see an example of a company history developed on the firm of Janes Fowler & Kirtland: