Time and again - Jack Finney

Si Morley is bored with his job as a commercial illustrator and his social life doesn't seem to be going anywhere. So, when he is approached by an affable ex-football star and told that he is just what the government is looking for to take part in a top-secret programme, he doesn't hesitate for too long. And so one day Si steps out of his twentieth-century, New York apartment and finds himself back in January 1882. There are no cars, no planes, no computers, no television and the word 'nuclear' appears in no dictionaries. For Si, it's very like Eden, somewhere he could find happiness. But has he really been back in time? The portfolio of tintype photographs and sketches that he brings back convince the government. But all Si wants is to return ...