By O.A. Troy
Bill O'Connor was a Church of the Nazarene pastor for many years and now is the executive director of the La Grande-Union County Chamber of Commerce, Newberg, Oregon.
Methodius James O'Driscoll
Methodius James O'Driscoll, retreat director and Greek Catholic monk, Mount Tabor Monastery, Redwood Valley, California.
Dan W. O'Ffill
Pastor, Potomac Conference
Richard W. O'Ffill
Richard W. O'Ffill is health ministries director for the Florida Conference, Winter Park, Florida.
Trevor O'Reggio, Ph.D., is director of the Master of Arts in Religion program at the Seventh-day Adventist Theological Seminary, Andrews University, Berrien Springs, Michigan
Eric Oakes, MSW, MBA, is the chief operations officer of Banyan Treatment Centers, Pompano Beach, Florida, United States.
John V. Oaklands
John V. Oaklands, professor of religion at Inca Union College
Michael J. Oard
Michael J. Oard, a specialist in atmospheric science and meteorology, is employed by the U.S. National Weather Service.
Antoinette Lewis Oberg
By ANTOINETTE LEWIS OBERG, Ministers' Wife, Aberdeen, Washington
E. M. OBERG, District Leader, Aberdeen, Washington
Gabriël A. Oberholzer
Gabriël A. Oberholzer, at the time of writing, was a senior theology student at Helderberg College, Somerset West, Western Cape, South Africa. He is one of two first place winners in the 2016–2017 Ministry student writing contest.
Engin Obucic is affiliated with the national interreligious dialogue in Sarajevo, Bosnia and Herzegovina, and works as a real estate portfolio coordinator for Unipromet d.d. Sarajevo.
Writes from the South England Conference
Barbara Oden, the multifamily housing coordinator for the Union Baptist Association, coordinates and encourages the ministry Baptists are carrying on in Houston's apartment complexes.
Michelle Odinma, MDiv, is a singer-songwriter and the associate pastor at Church of the Advent Hope in Manhattan, New York, United States.
Martha Montgomery Odom
Martha Montgomery Odom is a retired missionary and General Conference secretary. She is the wife of Pastor R. Leo Odom.
Robert L. Odom
Research Consultant, General Conference
Bernhard Oestreich, Ph.D., is lecturer of New Testament at Friedensau Adventist University, Friedensau, Germany.
Bv A. R. OGDEN, Minister, Cristobal, Canal Zone
Tony Ogouma, MABTS, president of Gabon Mission, is also Communication and Public Affairs and Religious Liberty director for the Central African Union Mission of Seventh-day Adventists, Libreville, Gabon.
George Ohlschlager is a co-author of Sexual Misconduct in Counseling and Ministry, published by Word, Inc., Dallas, Texas.
John C. Okpechi
John C. Okpechi, a pastor from Nigeria, is a graduate student at Friedensau Adventist University, Möckern, Germany.
Helen L. Oldham
By HELEN L. OLDHAM, Bible Instructor, Dayton, Ohio
Enoch Oliveira is a general vice-president of the General Conference of Seventh-day Adventists.
Arthur Oliver, Methodist pastor, Waverly, N.S.W.. Australia
Barry Oliver, Ph.D., is general secretary of the South Pacific Division of the Seventh-day Adventist Church, Sydney, New South Wales, Australia.
Elaine Oliver, MA, CFLE, is associate director for the Department of Family Ministries at the world headquarters of the Seventh-day Adventist Church, Silver Spring, Maryland, United States.
By F. M. OLIVER, Radio Evangelist, Lewiston, Idaho
Willie Oliver is director of family ministries for the North American Division of Seventh-day Adventists.
Stephen B. Olney
By STEPHEN B. OLNEY, District Leader, New London, Connecticut
By A. B. OLSEN, M.D., Neurologist, Battle Creek Sanitarium
Ingemann Olsen is editor of the Danish health journal, Sundhedsbladet.
Karl Stein Olsen
Karl Stein Olsen, Westwood Physical Therapy, California
By M. E. OLSEN, President of the Home Study Institute
H. O. Olson
Retired Minister, Glendale, California
Robert W. Olson
Robert W. Olson, Th. D., was the secretary of the Ellen G. White Estate at the time of his retirement last year.
Ikechukwu Michael Oluikpe
Ikechukwu Michael Oluikpe, PhD candidate in New Testament Studies, Adventist International Institute of Advanced Studies, Silang, Cavite, Philippines.
Evelyn Omaña is director of children's ministries at the Inter-American Division, Miami, Florida.
Ivan Omana, D.Min., is the ministerial secretary for the Inter-American Division, Miami, Florida.
Kelvin Onongha, DMin, serves as lecturer of theology at Andrews University, Berrien Springs, Michigan, United States.
Gottfried Oosterwal, D. Lift. and D. Litt. et Phil., is director of the Seventh-day Adventist Institute of World Mission and professor of missions and church growth at the Seventh-day Adventist Theological Seminary at Andrews University, Berrien Springs, Michigan.
Andrea Opel, MSW, is a child and adolescent social worker in Elkhart, Indiana, United States.
Daniel Opoku-Boateng, DPTh, serves as vice president and ministerial secretary, West-Central Africa Division, Abidjan, Cote d’Ivoire.
Rodlie Ortiz, MDiv, is the pastor for evangelism at Pioneer Memorial Church, Berrien Springs, Michigan, United States.
By A. W. ORTNER, Pastor, Philadelphia, Pennsylvania
Fred Osborn, Ph.D., is professor of marriage and family counseling, Loma Linda University, Loma Linda, California.
The late John Osborn was Ministerial director of the Pacific Union Conference of Seventh-day Adventists and was active in conducting seminars on effective preaching.
L. Calvin Osborn
L. Calvin Osborn, Ph.D., is pastor of the Arlington Seventh-day Adventist church in Riverside, California.
Norma Osborn, associate pastor, Sligo church, Takoma Park, Maryland.
Richard C. Osborn
At the tirne he wrote this article Richard C. Osborn was the principal of Takoma Academy, Takoma Park, "Maryland. He now serves as the education director of the Columbia Union Conference of Seventh-day Adventists.
Robert Osei-Bonsu, PhD, is president of the West-Central Africa Division of Seventh-day Adventists, Abidjan, Côte d’Ivoire.
Emmanuel Osei, DMin, is the president of the South England Conference of Seventh-day Adventists, Watford, Herts, United Kingdom.
Dewitt S. Osgood
By DEWITT S. OSGOOD, Pastor-Evangelist, Indianapolis, Indiana
By HIDEO OSHITA, Pastor, Japanese Church, Honolulu, Hawaii
Robert L. Osmunson
Loma Linda University
John Oss, General Editor, Signs Publishing House, Shanghai, China
MELVIN OSS, District Pastor, Colfax, Washington
By WALTER OST, Dean of Men, Washington Missionary College
Frank F. Oster
By FRANK F. OSTER, Director of the Turkish Mission
Kenneth Oster is the director of the Middle East Union special religious research team.
Elizabeth Ostring, MB ChB, PhD, a physician and theologian, is an adjunct research officer for Avondale University, Cooranbong, New South Wales, Australia.
M. Donovan Oswald
Ministerial Secretary, Indiana Conference
James C. Otore
James C. Otore is a district pastor in Nyamira Conference in Kenya, East Africa
Helmut Ott, Ed.D., is an ordained minister who chairs the Department of Modern Languages at Southern College in Collegedale, Tennessee.
Larry J. Otto
Larry J. Otto is assistant professor of fine arts at Columbia Union College, Takoma Park, Maryland.
Hannele Ottschofski is a pastor's wife in Mainz, Germany.
Beverly Farwell Owen
Beverly Farwell Owen is a pastor's wife and mother living in North Carolina
Wayne Owen, pastor of the Mount Pisgah Academy church, Candler, North Carolina, is researching motivational techniques used within churches for his D.Min. dissertation.
Larry Owens is a pseudonym.
Estelle Owenson is a pseudonym.
Brempong Owusu-Antwi is president/vice chancellor, Adventist University of Africa, Nairobi, Kenya.
Clifford Owusu-Gyamfi is the district pastor for Yeji in the Central Ghana Conference, Kumasi, Ashanti, Ghana.
J.M.A. Oyinloye is director/or children's Sabbath schools in the Nigeria Union Mission, West Africa.