Much of what is known about the stay of Sir John A. Macdonald and his family at Bellevue has been gleaned from both general historical knowledge of the 19th century in Kingston and from five letters that Macdonald himself wrote while living at Bellevue. The Macdonalds rented Bellevue from Charles Hales in the hope that the fresh air of what were then the outer suburbs of Kingston would assist in Isabella's recovery. The experiment was a failure, and Isabella did not recover from her chronic malady. In addition to this burden, tragedy further struck the young family when their first-born son, John Alexander Jr., died in the house a month after his first birthday.