Even general sources on a state you may never have visited can provide some of these valuable clues. Military One section that has proved very useful in our research was the section on the various wars in which America has been involved. These sections are usually arranged in chronological order, beginning with the earliest conflicts and continuing to the present. These sources represent significant research that satisfies admission requirements to one of these societies. The submitter may have worked on one of the lines you are researching, thus saving you considerable time.
Most libraries subscribe to a variety of publications.
Newsletters and magazines can be a source of general and specific information relevant to your research. A publication such as Ancestry Magazine can prove useful to beginning and advanced researchers. Some libraries have sources from the Federal government, especially indexes to various censuses. After searching published family histories, most researchers turn to Federal censuses. In such a case, you can go from the index to the microfilm room very easily to follow up on your families.