Nell first appears in the musical number "According To Plan" along with her husband, William, and their worker, Mayhew. Not much is know about her past only that her family is "new money" compared to the noble and seemingly wealthy Everglots. To gain more of a step in high society, she and William organize an arranged marriage along with the Everglots.
Nell was at her son, Victor, and Victoria Everglot's wedding rehearsal at the Everglot mansion.
While searching to their son, Nell and William wete told that Victor has married a Corpse Bride.
Nell and William were in the woods looking for Victor when Mayhew fell off the buggy and died, which caused them speed up and loose contral of the buggy. After finding Mayhew's corpse, her husband slows the buggy down but the buggy gets damaged.
While leave the graveyard and make it home, they found the dead walking around town. Shortly afterwards, Nell and William likely walk to the church and see Emily standing with Victor and see her turn into butterflies.
The next day, William and Nell saw Victor and Victoria get married at their wedding. What a happy ending!