Spelling errors, grammatical errors, and typographical errors within letters were not corrected, in order to preserve the flavor of the historical record of those letters. After all, some of these letters were written by girls as young as five.
Some of the illustrations have been moved so that they do not break up paragraphs, thus the page number of the illustration might not match the page number in the List of Illustrations.
On page 58, "reëstablished" was replaced with "reestablished".
On page 173, has a quotation mark at the beginning of "If I do not mistake" but no closing quotation mark, and it is less than clear where the closing quotation mark should be.
In the Chronology, horizontal rules were added to give clarity to the tables.