You may read about Bishop Robinson by reading his blogger profile, and that may be done by clicking his picture on the right of this page. In addition, the website for St. Paul's says this:
After leaving High School, the future Bishop Robinson read history and theology at the College of Ripon and York St. John, North Yorkshire, graduating Bachelor of Arts (Honours) of the University of Leeds in June 1991. He grew up in a moderately High Church parish that had had a long succesion of "Prayer Book Catholic" vicars. After graduating from College, he served as a lay pastoral assistant in a liberal Evangelical Church of England parish in London, which he describes as being "an interesting experience, in that it taught me just how deep seated theological liberalism had become in the Church of England." He also discovered that his conservative views on the Authority of Scripture, the Creeds and the Liturgy - a discovery that led to barriers being erected by "the powers that be" in his home diocese to his being ordained there.
Following the vote to ordain women in the General Synod (11/11/1992), Peter left the Church of England worried by the exclusively "liberal catholic" outlook of the leadership of his home diocese, and skeptical of theological validity of the "two integrities" theory being propounded to keep Traditionalists in the Church of England...
Bishop Robinson first became interested in the United Episcopal Church in 2001 when leading his former parish in California. He rapidly concluded that the UECNA "was the old (Anglican or Episcopal) Church without the heresy" because of its retention of the 1928 Prayer Book and old Episcopal Church Constitution. However, in 2001 circumstances did not allow him to join the UECNA. Eventually, in 2007, both Fr. Peter and St Paul's Anglican Church were able to join the United Episcopal Church in North America. On 29th October 2008, the Rev. Peter Robinson was elected as a bishop-suffragan in the United Episcopal Church on 29th October 2008, and was consecrated 10th January 2009 by the Most Rev. Stephen Reber, Presiding Bishop of the UECNA, assisted by the Right Rev. D. Presley Hutchens of the ACC Diocese of New Orleans, and the Right Rev. William Wiygul of the APCK Diocese of the Southern States. The consecration was held at Trinity Lutheran Church, St Louis, MO.