The publication of Ernest Hemingway's letters is a major literary moment, and one which Papa himself may not have wished to occur. Undertaken by Cambridge University Press, volume 1, covering the years 1907 through 1922, has been published to much fanfare and with great interest. This story from the Chronicle of Higher Education (potential paywall) explains some of the background of the publication, and includes interesting commentary from Hemingway's son Patrick.
This book trailer gives a bit more information about the publication of his letters:
Among my favorite are those sent to family and friends from fishing trips in remote Upper Peninsula Michigan. From August, 1919, Ernest writes to friend Howell Jenkins (p. 203):
Jock and Al Walker and I just got back from Seney. The Fox is priceless... The little Fox is about the size of the Black and lousy with them. Jock caught one that weighed 2 lbs. 15 and a half inches.
The Fox River went on to be immortalized in his short story "Big Two-Hearted River."
