An 1850s alumna

A researcher is writing about a Brockport area Civil War soldier who was married to a Collegiate Institute grad, Mary Allen. Tough era to research, an 1850s student. The only surviving BCI register is from the 1860s. The catalogs of the 1840s and '50s list student names, but that's it. No yearbooks etc., and the local BR only starts with late 1850s. I did see some mentions of her as Mary Cady, the local GAR Post was named after her husband.