If you liked that one, try Island in the Sea of Time it is a far better book, I have read it several times and love all the books in the series as well as the "flipside" story Dies the Fire.
Also another excellent series (so far) is Weapons of Choice (The Axis of Time Trilogy) by John Birmingham.
All of the above are excellent alternate history novels.
Thank you Mad Dawgg, will keep an eye out for those titles.
As I told Starter, I donated tons of stuff to Salvation Army last time I moved, and I know there were some good sci-fi books included in all of it. I'm a recovering packrat, so am trying to pass on items rather than hoarding them for years and years. It's a work in progress, this recovery of mine.
Sigh.
Anyway, thanks for your excellent suggestions.
jm