Boole (tree) the largest in Converse Basin Grove, was named around 1895 by A.H. Sweeny, a Fresno doctor, after Franklin A. Boole, a supervisor of the logging operation who spared the tree's life due to its great size. Before 1931, it was thought by many to be the largest tree in the world (although the General Grant Tree was more popularly known as the largest tree in the world at that time), but it is now known as the sixth largest tree, after five other giant sequoias: the General Sherman tree, the General Grant, the President tree, the Lincoln tree, and the
Grizzly Giant Grizzly Giant The Grizzly Giant is a giant sequoia in Mariposa Grove, located in Yosemite National Park. The tree has been measured many times, most recently in 1990 by Wendell Flint. It has a volume of , which makes it the 25th largest giant sequoia living today. The Mariposa Grove was first visited by non-natives in 1857 when Galen Clark and Milton Mann found it. They named the grove after Mariposa County, California, in which the grove is located. Nearby trees include the California tree, which has a hole cut through it. Mariposa Grove is the largest grove of giant