Wikipedia page about this book: https://en.wikipedia.org/wiki/O_Pioneers!

Release date is 2008-06-27

Martin Robb and David Widger

"O Pioneers!" by Willa Cather is a novel published in 1913. It follows Alexandra Bergson, a Swedish-American immigrant who inherits her family's Nebraska farmland and fights to build prosperity on the harsh prairie while neighbors abandon their dreams. As the land transforms under her determination, two forbidden romances unfold—one between Alexandra and an old friend, the other between her brother Emil and a married woman—testing loyalty, passion, and the price of survival in an unforgiving frontier. (This is an automatically generated summary.)

Original publication data not identified