The Behistun Inscription, one of the most significant historical documents in the world, was commissioned by Darius the Great of the Achaemenid Empire in the 6th century BCE. In 1844, Henry Rawlinson, a British orientalist, along with two others, inscribed their names on this monument. While Rawlinson's identity is well-documented, the identities of his two companions, Captain James Felix Jones and Mr. A. Hector, have remained obscure. This article, through the examination of historical sources and archival records, seeks to uncover the identities of these two individuals. Captain Jones, a distinguished officer of the Indian Navy and a renowned cartographer, participated in numerous exploratory missions across the Middle East and played a pivotal role in producing detailed maps of the border regions between Iran and the Ottoman Empire. On the other hand, Mr. Hector, whose name is only recorded as Hester beneath the inscription and in all written sources, has no available information beyond his association with Rawlinson. He likely served as a researcher or scientific companion during this expedition. This research demonstrates that the collaboration of these three figures marked a significant step in deciphering the Behistun Inscription and advancing the fields of archaeology and Middle Eastern history, highlighting the efforts of renowned experts in this historical and cultural endeavor.