Some people keep everything and others believe in unsentimental purging. The concern, of course, is that someone will throw away family papers, letters, or the information, unawares. When I took possession of my grandmother's photos, my uncle informed me that there had been a lot of letter tapes that were thrown away -- who knows what else, letters to be sure, as they were not in her box. Of course, there's no going back, but there's no time like the present to begin gathering what information and writings are available to you, before they disappear.
A recent article in the Bangor Daily News, "Your family may have a trove of writings," brings home the point and suggests some of the items you may find, often hidden in plain sight. Even if you think you've found it all, this gives an idea of the types of writing family members might leave behind, including those old school reports -- such writings do have meaning.