| 1. Paul-Henri Nargeolet was an American deep-sea explorer of French descent. |
| 2. He was a renowned expert on the Titanic. |
| 3. On June 18, 2023, Nargeolet and four others perished when the submersible Titan imploded near the Titanic wreckage in the North Atlantic Ocean. |
| 4. He grew up in Casablanca, North Africa. |
| 5. At 16, he moved to Paris for higher education. |
| 6. Nargeolet's love for the sea began early, experiencing wreck diving at age nine. |
| 7. In September 1964, he began his service in the French Navy in various roles. |
| 8. In the 1970s, he led a team specializing in submerged mine detection and neutralization. |
| 9. He was instrumental in expeditions recovering sunken aircraft and shipwrecks. |
| 10. After retiring from the French Navy, he ventured into deep-sea exploration focusing on the Titanic. |
| 11. Nargeolet led multiple missions to explore and document the Titanic wreck site. |
| 12. Beyond the Titanic, he discovered various marine wreckages, including La Lune. |
| 13. Nargeolet directed deep diving equipment at IFREMER after the French Navy. |
| 14. He collaborated with Aqua+ in underwater film production and operations. |
| 15. From 2004 to 2007, he provided consultancy services in underwater exploration. |
| 16. In 2007, RMS Titanic, Inc. sought his expertise to locate the RMS Carpathia wreck. |
| 17. He oversaw retrieving artifacts from the Titanic wreck with RMS Titanic, Inc. |
| 18. In 2010, he contributed to creating a comprehensive 3D map of the Titanic wreck site. |
| 19. Nargeolet was involved in the search for the Air France Flight 447 flight recorder. |
| 20. In June 2023, he embarked on his final Titanic expedition, tragically leading to his passing. |
| 21. He directed Michigan State University's CMURM from 2015 to 2016. |
| 22. He authored "Dans les profondeurs du Titanic" in April 2022, documenting his expeditions. |
| 23. Nargeolet participated in creating two Titanic documentaries. |
| 24. His last exploration aboard the Titan ended in tragedy in June 2023. |
| 25. Nargeolet's daughter emphasized his profound love for underwater expeditions. |
| 26. Before his passing, he resided in Charleston, West Virginia. |
| 27. He served in the French Navy from 1964 to 1986 as an officer specializing in mine clearance, diving, and deep underwater intervention. |
| 28. In the 1970s, he was Commander of the Groupement de Plongeurs Démineurs de Cherbourg. |
| 29. In the 1980s, he joined the Undersea Intervention Group, piloting deep-sea submersibles worldwide. |
| 30. With IFREMER, he piloted dives to the Titanic wreck in 1987, 1993, 1994, and 1996; the 1987 dive was the first to collect artifacts from the site. |
| 31. In May 1993, he accidentally discovered the wreck of the Lune, a 17th-century French warship off Toulon. |
| 32. He made over 35 dives to the Titanic wreck across six expeditions over 35 years. |
| 33. He retired from the French Navy as a frigate captain. |
| 34. From 1996 to 2003, he worked with Aqua+ to lead underwater missions using two submarines for film production. |
