The digitized copy of this book is available free, online:
History of Worcester, Massachusetts, from Its Earliest Settlement to September 1836
Originally published in 1837, it's fully searchable and indexed.
Go to
http://books.google.com Select/click "Full view books" and
Type in: history worcester
(Note: If you don't click "full view", you’ll include books that show you just "snippets" of the text, not the whole text– which isn’t as useful!)
Click highlighted results to see full book.
The entire book can also be saved as your own pdf file!