Possible Clues:

• Sequoia's kin
• Giant timber cross etched with name of king, half erased
• Revolutionary court decision's beginning significant growth
• Timber cross we'd erroneously inscribed
• Huge tree in California
• Revolutionary English conductor, giant in America?
• Former minister, communist 16
• The world's tallest tree is one
• Tall tree Edward, half-cut, carved into cross
• Tall Yosemite attraction