As he had accompanied his father when he was a young man, on this measuring project Cassini had the assistance of his own son César-François Cassini (who appears in this archive under the name Cassini de Thury).
Bilang niya na ang kanyang ama kapag siya ay isang binata, ito sa pagsukat sa proyekto ng Cassini nagkaroon na ng tulong ng kanyang sariling anak na lalaki Cesar-François Cassini (na lalabas sa archive na ito sa ilalim ng pangalan ng Cassini de Thury).