S. Matthew Despain and Fred R. GowansUtah History Encyclopedia, 1994 John Henry Weber was born in 1779 in Altona near Hamburg, at that time part of Denmark. By 1807 he migrated to America to Ste. Genevieve, Missouri where he became acquainted with William Ashley and Andrew Henry. In 1822 Weber enlisted in the Ashley-Henry Fur Company which departed St. Louis …