Railroad historical societies are not only the premier organizations keeping alive the memory of dozens of bygone railroads but also how the industry in general once operated (for instance, such as the use of steam locomotives and cabooses). Some have vast archival collections of information and without them knowing exactly how a particular railroad operated would likely be lost forever. So, if you have a certain fallen flag railroad that interests you consider becoming a member of the historical society dedicated to keeping its memory alive. They would not only appreciate the extra help but your support also helps to keep their organization running so that the next generation may know how things once were. In any event, while many railroad historical societies are mentioned around the website I thought a page set up as guide listing them altogether in one place would be more beneficial to you.
First and foremost mentioned should be the National Railway Historical Society (NRHS), the central organization upon which dozens of chapters have been founded and now operate around the country. Their, and each chapters' goal is simple, to preserve and tell the story of the history and present day railroad industry so that future generations may know not only how railroads operate but also how they have come to shape this great country of ours. If you are able and willing, please consider supporting the NRHS to aide them in keeping alive our railroad heritage, I know that they would very much appreciate such kindness.
Lastly, while I have covered a few in the above list there are still many, many other chapters of the National Railroad Historical Society not covered here. For more information about these chapters, and the NRHS in general please visit their website by clicking here. Again, if you have the time and are able please consider joining one the society dedicated to the railroad that most interests you. Not only does your donation go towards keeping the society open but also, and most importantly, you are helping to keep alive the memory of a railroad which has an important place in American history.