She's a tad ornery, and quite possibly out of her gourd... but the records indicate that Ol' Emma does fit the framework of who Emma Felstone might be.
Perhaps you've seen Ol' Emma wander the city - she talks to herself, most often in nonsensical jibber-jabber. Still, she doesn't hurt anything or anyone, so folks pretty much leave her be.
All things considered, I would say that Ol' Emma is in fact Emma Felstone. You might try asking if her last name is indeed Felstone.
Better Late Than Never - (Step 1) Check with the Royal Factors of Stormwind to learn the whereabouts of an Emma Felstone. There is usually a census officer located in City Hall.
52
Stormwind City Alliance Quest
Good Natured Emma - (Step 2) Find Ol' Emma in Stormwind and see if she is in fact Emma Felstone. If she is, then perhaps she'd like the package Janice Felstone made for her.
52
Western Plaguelands Horde & Alliance
Good Luck Charm - (Step 3) Return to Janice Felstone in Western Plaguelands her Good Luck Half-Charm.
54
Western Plaguelands Horde & Alliance
Two Halves Become One - (Step 4) Locate the other half of the Good Luck Charm somewhere on the Felstone Farm in Western Plaguelands and reassemble it.
Give the Good Luck Charm to Janice Felstone on the Felstone Farm, Western Plaguelands.