April 12, 1855. Ezra Cornell to Mary Ann Cornell: "He may escape as there is not one in twenty who have been vaccinated that take the small-pox on exposure." April 22, 1855. Ezra Cornell to Mary Ann Cornell: "Calista was on her way to Windsor Canada to teach in a school of fugitives. They are sent to Canada as teachers by some society who have the educational welfare of the blacks in Canada under their keeping." April 29, 1855. Ezra Cornell to Mary Ann Cornell: "I see a lot of boys in front of my window gambling with pennies. I hope my boy Perry is better engaged." Topics: Telegraph business correspondence: refinancing of stock, office operations, western lines, Ely judgment; Ohio, Indiana, and Illinois Telegraph Company; Erie & Michigan Telegraph Company.; smallpox. Personal names: Speed, J.J.; Cornell, Mary Ann Geography: Ithaca, N.Y.; Michigan