After leaving Fairfield Medical College he divided his years between teaching in Bartlett’s school in Utica (some of his old pupils still recall his field excursions with his class, and his eager delight in the search after plants), in journeys botanical and mineralogical, and in some shorter and longer stays in New York, where for a good portion of the time he was a member of Dr. John Torrey’s family. Dr. Torrey was a keen observer, a lively suggester of new theories and explanations, most eminently truthful in all inquiries, and a devout Christian. Mrs. Torrey was a woman of rare character, refined, of intellectual tastes and cultivation, great independence, extremely benevolent, and with a capacity for government and control. She was devotedly religious, not only for herself and her own household, but for all who could possibly come within her influence. It was a new experience to the country-bred young man, and she saw in him many capabilities of which he was as yet himself unconscious. He always said that in his development he owed much to her in many ways. She criticised and improved his manners, his tastes, his habits, and especially, together with Dr. Torrey, exercised a strong influence on his religious life. His parents and family were conscientious, good and faithful church members. But they were not people who talked much, and indeed had little direct oversight of their son after he was fourteen years old, when he left home. He never returned to the family roof after that for more than a few months at a time, and his youthful surroundings away from home were of very varied influence; some of them, though never vicious, were of a decidedly irreligious character. When he entered the Torrey family, the difference in the life, the contrast in the way of meeting trials and sorrows struck him forcibly, and the religious side of his nature was roused, a serious interest awakened, which from that time on made always a strong and permanent part of his character. Dr. Torrey saw the ability of the young student, and writing to his friend, Professor Henry, in February, 1835, to see if a place could not be found for him at Princeton, says:-- “I wish we could find a place for my friend Gray in the college.... He has no superior in botany, considering his age, and any subject that he takes up he handles in a masterly manner.... He is an uncommonly fine fellow, and will make a great noise in the scientific world one of these days. It is good policy for the college to secure the services and affections of young men of talent, and let them grow up with the institution.... He would do great credit to the college; and he will be continually publishing. He has just prepared for publication in the Annals of the Lyceum two capital botanical papers.... Gray has a capital herbarium and collection of minerals. He understands most of the branches of natural history well, and in botany he has few superiors.”