Vader's gravestone.
Vader was the name of a resident of Caldos colony. Vader passed away on September 23, 2242.
Vader's gravestone was in the same cemetery where Felisa Howard was laid to rest in 2370. In that year, the area around Vader's grave was the scene of a battle between Felisa's granddaughter Beverly Crusher and an anaphasic lifeform named Ronin. (TNG: "Sub Rosa")
Alternate reality
Template:2009spoilersection In an alternate reality, Vader entered Starfleet Academy in the 2250s.
When Vulcan was attacked by the Narada in 2258, Cadet Vader was assigned to the USS Hood to assist in the rescue attempts. (Star Trek)
Background information
The name "Vader" is an in-joke reference to Darth Vader, a major villain in the Star Wars saga.
Vader likely perished when the Hood was destroyed by the Narada.