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
Big Tree in Chirinda Forest Big Tree in Chirinda Forest Big Tree (or The Big Tree in Chirinda Forest) is the tallest native or indigenous tree in Zimbabwe, and a declared National Monument. The tree is 65 m tall and measures 4.5 m in diameter, while its age is estimated at 1,000 years or over. This impressive tree is growing in the centre of the Chirinda Forest (formerly known as Selinda, from the Mount Selinda Mission School of the same name) in the south east of Zimbabwe at the southernmost part of the country's Eastern Highlands. Big tree is a "Khaya anthotheca" or Nyasa redwood