Pelops
2 of the 7 encyclopedias on this shelf carry an entry for Pelops. Both are reproduced below, so you can see where they agree and where they differ.
Collier's New Encyclopedia (1921)
in Greek mythology, the grand-son of Zeus, and the son of Tantalus, was slain by his father, and served up at an entertainment which he gave to the gods, in order to test their omniscience. They were not deceived, and would not touch the horrible food; but Demeter, absorbed with grief for the loss of her daughter, ate part of a shoulder without observing. The gods then commanded the members to be thrown into a cauldron, out of which Clotho brought the boy again alive, and the want of the shoulder was supplied by an ivory one. According to the legend, Pelops was a Phrygian, who, being driven by Ilos from Sipylos, came with great treasures to the peninsula which derived from him the name of Peloponnesus, married Hippodamia, obtained her father's kingdom by conquering him in a chariot race, and became the father of Atreus, Thyestes, and other sons.
1000 Classical Characters (1900)
A celebrated prince, son of Tantalus , king of Phrygia. He was killed by his father, and served up as a feast to the gods, who had visited Phrygia. He was restored to life, and married Hippodamia , having won her through defeating her father in a chariot race. 2026 Editor's Note: The myth of Pelops is central to the founding of the ancient Olympic Games, where he was venerated at a dedicated sacrificial pit in Olympia. His name is the etymological root of the Peloponnesus region, which literally translates to "Pelops's Island." While this text mentions his father Tantalus serving him as a feast, that act resulted in the eternal punishment of Tantalus in Tartarus, which inspired the English word tantalize . (Ed: BR 2026-06-22)