The Right Reverend David Ralph Spence was the tenth Bishop of Niagara, having been consecrated in Christ's Church Cathedral, Hamilton, Ontario on September 20th, 1997 (as Coadjutor Bishop), and installed as Diocesan Bishop on January 11, 1998. Bishop Spence retired from ministry on Friday February 29th 2008.
For more information on Bishop Ralph, you can visit his Wikipedia page.