Nehsi/ Nehesi/ Nehesj was (and still is) someone of great importance to Hatsheput and to those of us who study her. I have limited information so far, but this was the man chosen to lead/ organise Hatshepsut's expedition to Punt. He is included in the Punt Colonnade at Deir el Bahri, was possibly of Nubian decent and held at least 2 titles: Wearer of the Royal Seal and Chief Treasurer.
Whether or not he was involved (in the expedition to Punt) from start to finish (including traveling there), i cannot tell you. Further searching will no doubt add further information and i will share any further information when available.
Wikipedia has this short article