Bob Burd completed the Highest 100 Peaks with at least 300' of interpolated prominence in the state of California on 9/26/2016 with an ascent of "Milestone Mesa". He is the first and only person to complete this list...
To be fair, Andy Smatko finished this top 100 list back in the 1960s. Unfortunately, we dont have his non-Sierra records but it is almost certain he climbed those as well. His High Sierra accomplishments are phenomenal.