Nice page Adam. FWIW, Prophet was ascended on 9/13/75 by Norm Burke, Cliff Lawson, Ed Lebert and Dan Sjolseth. This is the first known ascent. While the peak may have been climbed earlier, the lack of access prior to the completion of the North Cascades Highway, the moderate elevation and the relative absence of nearby peaks and spires/walls to attract hardcore climbers make it plausible at least that this was a first ascent.
A shout-out was given to this page, but still no route report here. Apparently it's not such a bad idea after all!