Just call the County Clerk of Butler County and ask. They charge a nominal fee. It's so reasonable that I've ordered about 20 records for people I "might" need to look up. http://www.co.butler.ne.us/
As of this date, the phone number is on the left, (402) 367-7430 and if you call they will tell you how.
Book 2... fairly early. I'm attaching one from page 341 of the same book to show you what you will be getting. Some of them do list the village where bride or groom were born, others just say "Moravia" etc.