Bishop O’Gorman High School Mass and Graduation + Add to Google Calendar + iCal / Outlook export The event is finished. Diocesan Info MenuBishop Donald E. DeGrood Parishes in the Diocese Diocesan Ministries Directory Religious Communities Online Donations Contact Us Audio / Radio /PodcastsThe Holy Rosary Catholic Views Ignition The Sunday TV Mass Photos and VideoPhotos Videos Contact Us Catholic Diocese of Sioux Falls Chancery Office 523 N. Duluth Ave. Sioux Falls, SD 57104 (605) 334-9861 webpage@sfcatholic.org Looking for someone specific? Diocesan Ministries Directory