Years after the wars ended, Logan resurfaced as a federal agent. Things become cloudier come the 1950s and 60s, when Logan appeared to become involved in espionage. Around this time it seems Logan allowed false memories to be implanted hypnotically in the event that he should be captured and interrogated. Unfortunately later incidents would trigger these false recollections, making Logan increasingly uncertain how much of his memories are real.

It seems he did work as a member of a covert group known as Team X, which is probably where he picked up the codename Wolverine for the first time. His fellow teammates were apparently Sabertooth, Maverick, Silver Fox, Wraith and Mastodon, but since all of them received memory implants, the information cannot be confirmed. 

Logan was taken by a group of scientists led by Dr. Cornelius as part of the Weapon X Project. Cornelius was hired to perfect and use a technique that would bond the indestructible element adamantium to human bone cells. Information suggests this was the "Weapon 10" project, a continuation of the Western powers plans to create a perfect supersoldier, with Captain America, the first supersoldier, being Weapon 1.

Logan's skeleton was sucessfully bonded to the adamantium but the pain from the procedure caused Logan to display his claws once more, and also to (temporarily) lose his humanity. He escaped, and fled once more into the wilderness, where he later encountered the Hudsons and joined Department H.