Manning builds an inappropriate Bayesian age model to assert that the initial occupation at Cooper's Ferry began only similar to 15,935 +/- 75 to 15,130 +/- 20 cal yr B. P., suggesting that our estimation of similar to 16,560 to 15,280 cal yr B.P. is unsupported. However, this analysis both ignores evidence of human occupation from the earliest undated cultural deposits and reflects a misapplication of Bayesian age- modeling techniques. Consequently, his results are unreliable.