 Daniel acquired 850 acres and was appointed Commandant and Syndic, district magistrate by the Spanish government.In 1803 with the Louisiana Purchase, they lost the rights to their lands but with the direct intercession of Congress in 1814 some parts of his acreage were restored.After a brief illness, Rebecca Boone died at the age of 74 on March 18, 1813, at her daughter Jemima Boone Callaway's home near the village of Charette (near present-day Marthasville, Missouri).