- For information about the Fereldan nobles, see Howe family.
The Howe Family is Nathaniel Howe's personal quest in Dragon Age: Origins - Awakening. Nathaniel has learned that his sister Delilah survived the Fifth Blight and is now married to a storekeeper in the City of Amaranthine. With the rest of the Howe family dead, Nathaniel is particularly interested in reuniting with her.
Walkthrough
With Nathaniel in your party, head to the Vigil's Keep courtyard. There he'll run into Groundskeeper Samuel, who will inform Nathaniel that his sister, Delilah, is still alive, and in Amaranthine.
Make sure Nathaniel is in the party and enter the City of Amaranthine. Turn left, go past Glassric the Weaponsmith and Octham the Grocer. Delilah is next, on the left, with her back to you. Approach her and a cutscene will follow.
Dialogue with Nathaniel will net you 
Nathaniel approves (+6) from him by choosing "You don't believe her?" and then option 1 "It's not your fault Nathaniel."
Result
Nathaniel approves (+6)
Notes
- If you're a male Human Noble, Delilah will make a reference to how her father tried to set her up with the "stuck-up Cousland boy" and that she never liked the idea of it. At that point you'll get three dialogue options where she'll recognize the Warden-Commander and apologize for what her father did. In the Human Noble Origin, if you were male, Arl Howe mentioned how Delilah had an interest in you.