The first three of these are microfilmed. Series IV and V are not microfilmed, but Balch correspondence and writings found there were moved into Series II and III and thus are filmed. Letters are together in chronological order by year, month, and day. If only the month is known, the letter appears at the end of that month. If only the year is known, the letter appears at the end of that year.
Undated correspondence is together, following dated correspondence.
When a page is missing from a dated letter, it may be found with undated correspondence. The same chronological arrangement is used with writings as with correspondence. Some of the undated writings have identification numbers which refer a researcher to the Appendix at the end of this guide. Only a very few short books by Balch are filmed. Others can be found in the library of the Swarthmore College Peace Collection.