"The Dorothy Day Library on the Web includes all of Dorothy Day’s writings in The Catholic Worker newspaper as well as selected articles published elsewhere and many of her books." Users can search or browse the materials.
Book Sources: Dorothy Day
A selection of books/e-books available in Trible Library.
Click the title for location and availability information.
Suggested terms to look for include - diary, diaries, letters, papers, documents, documentary or correspondence.
Combine these these terms with the event or person you are researching. (example: civil war diary)
Also search by subject for specific people and events, then scan the titles for those keywords or others such as memoirs, autobiography, report, or personal narratives.
An additional option is to do a search on a topic and use the "Resource Type" limiter on the left side of the results and choose the option "Primary Sources" - please note this is extremely limiting as most primary source materials are not marked in records with this resource type and you will miss seeing a large number of useful items.