1867-1957 1873-1947 20thcentury agriculturedanslalittérature agricultureinliterature american autobiographicalfiction biographies biography booksandreading cather children children'sstories conditionssociales criticismandinterpretationwilder domesticfiction etc examinations feminismandliterature frontierandpioneerlife frontierandpioneerlifeinliterature handbooks historicalfiction history historyandcriticism inliterature lauraingalls manuals mothersanddaughtersinliterature pionnières pionnièresdanslalittérature prairieprovinces provincesdesprairies sexroleinliterature socialconditions studyandteachingcather studyguides unitedstates viedespionniers willa womenandliterature womenpioneers