Final answer:
William Burke and William Hare were the two body-snatchers who resorted to murder to provide corpses during the 1820's.
Step-by-step explanation:
The two body-snatchers during the 1820's who resorted to murder to provide corpses were both named William, with the last names Burke and Hare. They infamously sold the bodies to a renowned anatomist named Dr. Robert Knox.