I found another name that has been used more than once in the show. Boone talked about his nanny Theresa.In Locke's dream he repeated Theresa falls up the stairs ,Theresa falls down the stairs. Which oddly was like his death,Boone climbed up the cliff, Boone fell down the cliff.
Ana -Lucia's mother was also named Theresa.
Boone said that Theresa broke her neck.In the episode where we learn the name of Ana's mom , Henry tried to strangle Ana and break her neck.
They are probably not the same person but it was an odd coincidence.