Henry David Thoreau was born in Concord, Massachusetts in 1817. He graduated from Harvard in 1837, the same year he began his lifelong Journal. While living at Walden Pond, Thoreau worked on the two books published during his lifetime- Walden (1854) and A Week on the Concord and Merrimack Rivers (1849). Several of his other works, including The Maine Woods, Cape Cod, and Excursions, were published posthumously. Thoreau died in Concord, at the age of forty-four, in 1862. Edward Hoagland's books include The Courage of Turtles, Walking the Dead Diamond River, Red Wolves and Black Bears, and Notes from the Century Before- A Journal from British Columbia.