Who chanmged the names of donner and blixen?

The names of Donner and Blitzen, which are traditionally known as Santa Claus's reindeer, were changed by the 1823 poem "A Visit from St. Nicholas," commonly attributed to Clement Clarke Moore. In the original German tradition, they were named "Donner" and "Blitzen," meaning "thunder" and "lightning." Moore's version popularized their names in English as "Donner" and "Blitzen," which are often mistakenly thought to be "Donder" and "Blitzen." The change helped solidify their place in American Christmas lore.