He found intact tombs and 60 of the famous portraits, and discovered from inscriptions on the mummies that they were kept with their living families for generations before burial.
Under Auguste Mariette's arrangements, he sent 50% of these portraits to the Egyptian department of antiquities.
William Petrie was an electrical engineer who developed carbon arc lighting and later developed chemical processes for Johnson, Matthey & Co.
Petrie was raised in a Christian household (his father being a member of the Plymouth Brethren), and was educated at home. His father taught his son how to survey accurately, laying the foundation for his archaeological career.
By the time he reached Aswan, a telegram had reached there to confirm the renewal of his funding.