Four of the Douglas Firs from Robert Van Pelt's book Forest Giants of the Pacific Coast have died or fallen: Rex, Ol' Jed, Cedar Flats Sentinel, and Mauksa.
Queets Fir and Quinault Lake Fir have conflicting measurements of CBH, 45.5-53.4 for Queets and 44.3-48.5 for Quinault. Van Pelt reported trees are based on a 3D model, so their CBH numbers usually run high compared to the universal standard.