For 8 years, I attended the same church in which John Otis was a ruling elder. I know him well. The church, Chalcedon Presbyterian Church, is RPCUS and pastored by Joe Morecraft. While attending there, I grew a lot in the faith. The church subscribes to the WCOF, but is also reconstructionist, although not overtly so.
If I recall correctly, John has moved to Corpus Christi top pastor a new RPCUS church where he had been an itinerant preacher for years. He was educated at RTS (Jackson, MS)
John is a fine man and was in my opinion an excellent elder.