I think the statement about the brown was copy/pasted and is an old article. Of course the brown trout state record has been broke twice since, both on Taneycomo.
We found a brown about 10 years ago dead, floating up from the dock that measured 44 inches long. It had been dead long enough that the girth was probably bloated and inacurate so the weight is unknown. But it's possible it could have been larger than the world record- it was longer.
Some have seen larger browns. We've seen them as large or larger under our dock but it's been a few years since we've seen them.