About the books:

Here's a fanlisting for those of you who are into that sort of thing...
The Unofficial Edward Eager Page was last updated in 2000 and disappeared from the internet a couple of years later, but this link is to the wonderful Wayback Machine.
Another small fan page

Other links of interest:

Edward Eager's Obituary from the New York Times
Information on the Edward Eager Memorial Fund, a scholarship for Harvard creative writing students. (do a little scrolling and searching)
Eager's son Fritz has an art collection and scholarship fund set up in his name at his high school.Download the provided PDF and you can check out Fritz's paintings, as well as his awesome hair and glasses. :P

Places to find used books: