How did boarding school at allenswood treat her?

There's no single answer to how Allenswood School treated its students, and specifically how it treated *a particular* student depends entirely on who that student was and when they attended. Allenswood, like many boarding schools of its time, had a reputation that varied over time and depended on individual experiences.

While some accounts might portray a generally positive experience focused on academic rigor and social development, others might detail instances of harsh discipline, emotional neglect, or even abuse. Without knowing which specific student you are referring to, it's impossible to provide a definitive answer. To get a more accurate picture, you would need to specify which student's experience you are interested in.