• Skip to main content
  • Skip to secondary menu
  • Skip to primary sidebar
  • Skip to footer
Catholic Review

Catholic Review

Inspiring the Archdiocese of Baltimore

Menu
  • Home
  • News
        • Local News
        • World News
        • Vatican News
        • Obituaries
        • Featured Video
        • En Español
        • Sports News
        • Official Clergy Assignments
        • Schools News
  • Commentary
        • Contributors
          • Question Corner
          • George Weigel
          • Elizabeth Scalia
          • Michael R. Heinlein
          • Effie Caldarola
          • Guest Commentary
        • CR Columnists
          • Archbishop William E. Lori
          • Rita Buettner
          • Christopher Gunty
          • George Matysek Jr.
          • Mark Viviano
          • Father Joseph Breighner
          • Father Collin Poston
          • Robyn Barberry
          • Hanael Bianchi
          • Amen Columns
  • Entertainment
        • Events
        • Movie & Television Reviews
        • Arts & Culture
        • Books
        • Recipes
  • About Us
        • Contact Us
        • Our History
        • Meet Our Staff
        • Photos to own
        • Books/CDs/Prayer Cards
        • CR Media platforms
        • Electronic Edition
  • Advertising
  • Shop
        • Purchase Photos
        • Books/CDs/Prayer Cards
        • Magazine Subscriptions
        • Archdiocesan Directory
  • CR Radio
        • CR Radio
        • Protagonistas de Fe
  • News Tips
  • Subscribe
Dominican Sisters Carol Gilbert and Ardeth Platte, nuclear disarmament activists, are pictured next to a peace pole outside Jonah House in west Baltimore Jan. 12, 2012. Sister Ardeth died Sept. 30, 2020, in Washington at age 84. (CNS photo/Nancy Wiechec)

Sister Ardeth Platte, Baltimore nun who resisted war through prayer and action, dies at 84

October 12, 2020
By Dennis Sadowski
Catholic News Service
Filed Under: Feature, Local News, News, Obituaries

Dominican Sister Ardeth Platte long considered herself a peacemaker and devoted nearly 40 years of her life to praying and witnessing to end war and rid the world of nuclear weapons.

Her actions led to imprisonment multiple times, including for the 2002 defacement of a missile silo in Colorado in collaboration with her best friend, Dominican Sister Carol Gilbert, and fellow Dominican Sister Jackie Hudson.

Sister Ardeth, 84, died in her sleep at the Dorothy Day Catholic Worker House in Washington early Sept. 30. She and Sister Carol had been residents of the Jonah House community in Baltimore from 1995 until 2018, working on nuclear disarmament work with fellow Plowshares activists. They moved to the Catholic Worker community in Washington in December 2018.

Sister Carol told Catholic News Service she discovered her friend in bed, still wearing headphones after apparently listening to the radio. Sister Carol was waiting for her friend to awaken that morning so she could tell her that Malaysia overnight had become the 46th nation to ratify the Treaty on the Prohibition of Nuclear Weapons. Fifty nations must ratify the treaty for it to go into force.

The two Michigan natives and members of the Dominican Sisters of Grand Rapids spent decades crisscrossing the United States opposing war and acting to bring life to the biblical call to “beat swords into plowshares” by symbolically disarming nuclear weapons and other tools of war.

Dominican Sister Ardeth Platte, a nuclear disarmament activist, is pictured in this 2012 photo in Baltimore. Sister Ardeth died Sept. 30, 2020, in Washington at age 84. (CNS photo/Nancy Wiechec)

In a 2008 interview with the Catholic Review, Sister Ardeth and Sister Carol expressed shock that Maryland State Police listed them as suspected terrorists in a federal database because of their activism.

“We know we are not terrorists,” Sister Ardeth said. “Any civil disobedience we’ve done we’ve always taken any consequence. It’s always been lovingly nonviolent. It’s always been symbolic.”

Though state police agreed to expunge their names, she said, “the damage is done. Our names have gone across the world as terrorists.”

Sister Carol told Catholic New Service that as recently as Sept. 26, designated by the United Nations as International Day for the Total Elimination of Nuclear Weapons, her friend continued her quest for peace by addressing an online Boston University program marking the day. She also joined a quiet protest that day near the Dorothy Day Catholic Worker, holding a sign urging passersby to support nuclear disarmament.

The nuns met in the mid-1970s in Saginaw, Michigan, where they were teaching. Sister Ardeth was principal of St. Joseph High School in the working-class city. She had seen how crime and violence were claiming the lives of young people. In response in 1967, she founded and directed St. Joseph Alternative Night School for youth and adults who wanted to complete their high school education.

Sister Ardeth also began questioning the Vietnam War after seeing many of the city’s young people who managed to avoid trouble face unemployment and end up in the armed forces, fighting in Southeast Asia. She saw many return home maimed or killed.

Meanwhile, Sister Ardeth’s work as an educator impressed community leaders, who urged her to run for Saginaw City Council. She served as a council member from 1973 to 1985.

She also was coordinator of the Saginaw Home for Peace and Justice for more than 10 years.

The turning point for Sister Ardeth and Sister Carol came when they attended an international conference on nuclear disarmament in 1978 in New York, where they heard from prominent nuclear disarmament proponents, who urged attendees to address the challenges such weapons posed.

The sisters embarked on a 40-day trek across the country visiting and praying at nuclear weapons related sites.

“It was a spiritual journey,” Sister Ardeth later recalled to CNS. “The journey escalated us into the vow to spend the rest of our lives ridding the world of nuclear weapons and stopping war forever.”

During the 1980s, the nuns worked with a statewide peace coalition on a ballot initiative that would have prohibited nuclear weapons from being deployed in the state. Although it passed with 56% of the vote, federal law superseded state law, allowing for the deployment of nuclear weapons at two now-closed Air Force bases in northern Michigan.

In 2000, Sisters Ardeth, Carol and Jackie undertook the first of their Plowshares actions when they illegally entered Peterson Air Force Base in Colorado Springs, Colorado, and sprayed a fighter plane with their blood. They were arrested and jailed, but charges eventually were dropped.

Not long after, in 2002, the trio cut a fence to gain entry to a Minuteman III nuclear missile site near Greeley, Colorado. They prayed in front of the silo and then poured blood on it.

Closely following the events of 9/11, federal prosecutors charged them with obstructing national defense and damaging government property. They were convicted and sentenced to between 30 and 41 months in federal prison.

The imprisonment did not deter Sister Ardeth as she continued to oppose war and periodically faced arrest and jail.

The nuns’ imprisonment also led to their advocacy for reforms in the operation of federal prisons. Their efforts were the subject of a 2006 documentary, “Conviction.”

Born on Good Friday, April 10, 1936, in Lansing, Michigan, Sister Ardeth entered the Dominican order in 1954 at age 18 and was a member of the order for 66 years. She received a teaching degree from Aquinas College in Grand Rapids.

George Matysek in Baltimore contributed to this story.

Recent obituaries

A silent life behind three popes: Farewell to Angelo Gugel, the iconic papal butler

John L. Allen Jr.: A Man for All Seasons, at a Roman Table

Crux editor, veteran Vatican journalist John Allen loses battle with cancer

Father Zanardini, top missionary anthropologist among Indigenous groups, dies in Paraguay at 83

Sister Christina Christie, former Anglican nun who led her community into the Catholic Church, dies at 94

Hundreds bid ‘adieu’ to Brigitte Bardot at funeral in Saint-Tropez

Beloved pastor who endured paralysis dies at 77

Sister Catherine Horan, S.N.D.deN., dies at 86

Russell Shaw remembered as ‘giant of the Church’ for contribution to Catholic communications


Copyright © 2020 Catholic News Service/U.S. Conference of Catholic Bishops

Print Print

Primary Sidebar

Dennis Sadowski

Click here to view all posts from this author

For the latest news delivered twice a week via email or text message, sign up to receive our free enewsletter.

| MOST POPULAR |

  • Franciscan University Steubenville Steubenville students died from accidental carbon monoxide poisoning, say police

  • Archbishop Broglio: ‘Morally acceptable’ for troops to disobey ‘morally questionable’ orders on Greenland

  • Pastors encouraged to schedule extra Saturday services with snow, ice forecast for Maryland

  • Like mother, like daughter at St. Mark School in Catonsville

  • Participants in the thirteenth annual Rev. Dr. Martin Luther King Jr. and Monsignor Edward Michael Miller Prayer Service and Peace Walk In Baltimore, faithful walk for peace in Martin Luther King Jr.’s spirit

| Latest Local News |

Pastors encouraged to schedule extra Saturday services with snow, ice forecast for Maryland

Loyola University receives $12 million gift to establish Bloomfield Hall, create scholarship opportunities 

Like mother, like daughter at St. Mark School in Catonsville

Participants in the thirteenth annual Rev. Dr. Martin Luther King Jr. and Monsignor Edward Michael Miller Prayer Service and Peace Walk

In Baltimore, faithful walk for peace in Martin Luther King Jr.’s spirit

Radio Interview: Lent and Pope Leo

| Latest World News |

Majority of Americans identify as pro-choice, but most support some legal limits to abortion

Pope Leo sends ‘warm greetings,’ apostolic blessing to March for Life participants

Trump administration ends federally funded research with fetal tissue from elective abortions

A silent life behind three popes: Farewell to Angelo Gugel, the iconic papal butler

Indonesian bishop who renounced red hat resigns over ‘conflict’

| Catholic Review Radio |

Footer

Our Vision

Real Life. Real Faith. 

Catholic Review Media communicates the Gospel and its impact on people’s lives in the Archdiocese of Baltimore and beyond.

Our Mission

Catholic Review Media provides intergenerational communications that inform, teach, inspire and engage Catholics and all of good will in the mission of Christ through diverse forms of media.

Contact

Catholic Review
320 Cathedral Street
Baltimore, MD 21201
443-524-3150
mail@CatholicReview.org

 

Social Media

  • Facebook
  • Instagram
  • Twitter
  • YouTube

Recent

  • Majority of Americans identify as pro-choice, but most support some legal limits to abortion
  • Pope Leo sends ‘warm greetings,’ apostolic blessing to March for Life participants
  • Trump administration ends federally funded research with fetal tissue from elective abortions
  • A silent life behind three popes: Farewell to Angelo Gugel, the iconic papal butler
  • Pastors encouraged to schedule extra Saturday services with snow, ice forecast for Maryland
  • Indonesian bishop who renounced red hat resigns over ‘conflict’
  • John L. Allen Jr.: A Man for All Seasons, at a Roman Table
  • Crux editor, veteran Vatican journalist John Allen loses battle with cancer
  • Loyola University receives $12 million gift to establish Bloomfield Hall, create scholarship opportunities 

Search

Membership

Catholic Media Assocation

Maryland-Delaware-DC Press Association

The Associated Church Press

© 2026 CATHOLIC REVIEW MEDIA, ALL RIGHTS RESERVED