NMLP P-018636 · True-first precedence · minted 2026-07-04
The First Four Years
Laura Ingalls Wilder · Harper & Row · 1971
US Harper & Row first, published February 1971. Unlike the earlier novels, Garth Williams is correct for the true first because this book was only published after Wilder's death.
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New Mexico Literacy Project — True-first precedence NMLP P-018636 for "The First Four Years" by Laura Ingalls Wilder (https://newmexicoliteracyproject.org/id/point/p-018636, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).