Old Ephraim the Grizzly - Hardcoverby Theodore IV Roosevelt (Author) ""Old Ephraim The Grizzly"" is a non fiction book written by Theodore Roosevelt, the 26th President of the United States. The book details Roosevelt's experiences hunting and tracking grizzly bears in the American West, particularly his pursuit of a legendary grizzly bear named Old Ephraim. Roosevelt provides a detailed account of the grizzly bear's habits and behavior, as well as his own techniques for tracking and