Estelle Voeller serves as OSDI secretary and liaison for Green Legacy Hiroshima Peace Tree partners. She has been a community volunteer and advocate for over 60 years. Through the years, Estelle has engaged in environmental conservation, war resistence, peacebuilding, racial justice, parent and early child education, and support for schools and libraries. She currently serves as a caregiver, and primarily focuses her advocacy work on two of the greatest threats to human civilization - nuclear weapons and climate change.

After growing up in northern California, Estelle graduated from Raymond College of the University of the Pacific and worked as an administrative assistant, grower, and sales manager until beginning a family. She is a mother, foster mother and grandmother.

Estelle was fortunate to join the Rogue Valley Peace Choir's 2006 Peace Journey to Japan and meet many gracious survivors of the atomic bombings and their family members. This greatly expanded her understanding of the consequences of nuclear weapons, inspiring her to co-facilitate annual Hiroshima-Nagasaki vigils, education and advocacy in the Rogue Valley the past 16 years.

Hideko Tamura Snider, BCD, ACSW, now retired, was a child in Hiroshima when the city was destroyed by the explosion of the atomic bomb. She later came to the US and earned her BA in Sociology and an MA in a joint 4 year graduate program for Social Work from the University of Chicago and Church & Community from McCormick Theological Seminary. She worked in adoption and foster care for the Chicago Child Care Society, supervised in Adult Psychiatry at the Northwestern University Medical School and was responsible for social work support for the Radiation Oncology Department of the University of Chicago Hospitals before retiring to Southern Oregon. While employed, she also maintained a private practice in psychotherapy and in cross-cultural communications for the business community. She has lectured extensively in the US and in the UK. She is a member of the First Presbyterian Church of Medford, Oregon and served on the Multicultural Commission for the city of Medford.

She founded and chairs the non-profit organization, One Sunny Day Initiatives (OSDI), promoting peace, hope and reconciliation, while working toward a world free of nuclear weapons. She inspired and arranged a friendship tour "Peace Journey to Japan" for the Rogue Valley Peace Choir. They performed in Kyoto, Kobe and various venues in Hiroshima, including the Peace Park for the 61st anniversary of the atomic bombing in 2006. After learning of the Green Legacy Hiroshima project in Japan, she spearheaded an initiative to bring to the U.S. over 120 "Hiroshima Peace Trees", grown from seed of trees which survived the atomic bombing in 1945.

Hideko was awarded an Honorary Doctorate in Humane Letters by Wooster College (2010), was named Peace Ambassador for the City of Hiroshima (2013), and received the Peacekeeper Award from Ashland, Oregon's Peace House (2018).

Her publications include When a Peace Tree Blooms, 2013; One Sunny Day, 1996 (currently being revised and republished in 2023); "Hiroshima Memories" Bulletin of the Atomic Scientists, May 1995; "Hiroshima Remembrances" Asian Weekly, August 1996 and others.

In 2024 Hideko relinquished the role of Chair to Estelle Voeller, but still remains actively involved with OSDI.

Stuart Raub serves as OSDI treasurer, as well as providing general assistance to Hideko. He is originally from Pennsylvania and moved to the Rogue Valley in 2001. He has been practicing as a licensed Massage Therapist in Oregon for over 20 years. A dedicated beekeeper and animal lover, Stuart is pursuing his dream of establishing a small farm in the Applegate Valley.

Dr. Miko Rose is a founding member of OSDI and serves as our consultant for fundraising and development. She is Nationally Board Certified in Psychiatry and Neurology, having completed her training at Michigan State University. She is currently Assistant Dean of Clinical Education, Associate Professor, and Chief of the Division of Psychiatry in the Department of Clinical Medicine at Pacific Northwest University of Health Sciences College of Osteopathic Medicine. In addition, Miko is also Associate Professor and Program Director of the Joy Initiative Wellness Program at Michigan State University, a program she designed and teaches to develop emotional resilience, happiness and mindfulness, tailored to meet the unique needs of medical providers.

Prior to entering medical school, Dr. Rose worked as a program officer, fundraiser, and advocate for the under served, with a focus on overcoming domestic violence and trauma. She has over 25 years of experience and formal training in life coaching.

In 2006 she joined the Rogue Valley Peace Choir's Peace Journey to Japan as soloist and assistant to Hideko. She is also the mother of Hideko's granddaughter.