In my primary D&D campaign world, each of the Elven subgroups cover certain family houses. For example, Wind, Rain, Thunder and Lightning are all High Elven while the Sylvan Elves include Day, Ever, Morning and Dusk. So it can be easily determined that RainCatcher is a High Elf while DayCatcher is a Wood Elf.
The island settled by Elves and Humans in the south has a mix of names as a result of the mixed cultures. The Elves who first landed on the island wanted to establish their own family lines so they often added a third word to their names. LongDaysJourney is a Half-Elf whose sister might be LongDaysSong.
Some of our coolest names came from the Half-Elf nation including:
ThirdNightAngel
LongRoadWander
FiveSolemnShields
LastWinterMorning
and
EverRunDeep
AD