Not all names were unhappy ones, though. Like many people in this thread pointed out, the dwarves and hobbits used names over again, and many of these names were not sad at all.
For this challenge, you would write a story that has to do with an original or canonical character, and their namesake. The stories can be happy, sad, angsty, or whatever you feel like writing. They just have to involve a character and the person that they are named after. Also, like Meril pointed out, there were some characters that had similar names to another person, like Elboron and Boromir.
Meril posted several examples of Tolkien characters and their namesakes. Here are some of them:
Miriel, Feanor's mother, and Miriel, last queen of Numenor.
Morwen Eledhwen (First Age) and Morwen Steelsheen (Thengel of Rohan's wife, Third Age)
Finduilas of Nargothrond and Finduilas of Gondor.
Turin Turambar and his 3 Gondorian namesakes (Turambar, Turin I, Turin II)
The stewards often named their children after heroes of the First Age (i.e. Denethor, Boromir, Ecthelion, Egalmoth)
Hobbits often repeated names.
Dwarves had all the Durins (I-VII, I believe)
Sam/Rosie's kids Frodo, Rose, Merry, Pippin, Hamfast, Daisy, and Bilbo were all named after someone.
Pippin/Diamond's first son was named Faramir I.
Elboron, Faramir's son, was named for Boromir.
Barahir, Faramir's grandson, was named for Beren's father of the First Age.
Create an OC that is named after someone.