What career did Hepzibah once consider?

In her younger years, Hepzibah considered a few different vocations. Namely, a seamstress or a teacher.

"With her near-sightedness, and those tremulous fingers of hers, at once inflexible and delicate, she could not be a seamstress; although her sampler, of fifty years gone by, exhibited some of the most recondite specimens of ornamental needlework. A school for little children had been often in her thoughts; and, at one time, she had begun a review of her early studies in the New England Primer, with a view to prepare herself for the office of instructress."