ABS Board of Directors & Officers

Organizational Structure

American Bonsai Society’s organizational structure consists of a board of directors, president, officers, executive secretary and journal editor. We do not have a headquarters or an office. The Board of Directors (up to 25 in number) oversees the strategic direction and goals for the organization. The President is responsible for implementing the board’s directions as well as overseeing the operations of officers and the executive secretary.

Our Officers are responsible for keeping the organization moving forward. Their duties include developing educational programs, guiding the efforts of the annual symposium coordinator, recruiting members, recording the organization’s business meetings, tracking and finding finances.

The Executive Secretary is responsible for the day to day tasks needed to keep the organization operating smoothly. This includes central registration processing and maintaining the list of members, responding to business inquiries, etc.

The ABS Journal Editor is responsible for layout, content, and timely publishing of the Bonsai: Journal of the American Bonsai Society, which is the most visible part of the ABS organization.

ABS Board of Directors

President – Karen Harkaway

Dr Karen Harkaway, a practicing dermatologist, began her bonsai journey about 15 years ago, when she began studying with Chase Rosade. Since then, she has also studied with Colin Lewis, Ryan Neil, Mauro Stemberger, and Hugo Zamora Luna, among others. Karen served as Vice President of the American Bonsai Society from 2010 until 2014, and again from 2018-2022. She was President from 2014-2018, and as of January 2023, she again serves as President. An enthusiastic student of bonsai, she has exhibited in all US National Bonsai Exhibitions except the first. Karen has won the President’s Award at the 2012 Mid-Atlantic Bonsai Societies Festival, and both the Executive Committee’s Award and the People’s Choice Award at the same convention in 2013. She was also honored to win the John Naka Award, hobbyist division, in 2013. In 2018, she won the Travel Award for best tree/companion display, at the Sixth US National Bonsai Exhibition. Karen is passionate about all things bonsai and greatly enjoys being an ambassador for the promotion of our art form.

Vice-President – Rob Hoffman

I am a trade carpenter and work on large commercial buildings for over 20 years. I have practiced bonsai over ten years and I am the owner of Yume-en bonsai nursery where I grow and maintain trees and teach workshops. I live in the Columbus Ohio area with my wife, Niki and our two dogs.

Treasurer – Joe Graviss

Joe Graviss is a retired Certified Public Accountant, businessman, civic entrepreneur, and state legislator. He and his wife live on a small farm in Kentucky.

Secretary- Scott Barboza

Dr. Scott Barboza was introduced to bonsai by a close friend while living in California in 1990. Bonsai neatly married his passion for hiking and the outdoors with his love of gardening and a longtime fascination was born. He took introductory classes through the Sacramento Bonsai Society, but his serious study began in Seattle where, as a member of the Puget Sound Bonsai Association, he took workshops at Elandan Garden and Weyerhaeuser‘s Pacific Rim Bonsai Exhibit. After moving to Houston in the late 1990s, Scott became a member of the Houston Bonsai Society and began studying with Boonyarat Manakitivipart with whom he has worked for many years. Scott held many positions in Houston, including Vice President. He has lectured extensively, taught numerous classes and workshops, and helped to organize several conventions and exhibitions.

Scott’s trees have won numerous awards at local, state, and regional competitions and he has exhibited trees at the Bay Island Bonsai Exhibition in San Francisco and the US National Bonsai Exhibition in Rochester. He is currently building his home and garden in the foothills of the Blue Ridge Mountains in Virginia.

Director – Bobbie Alexander

Bobbie served as Executive Director of the National Bonsai Foundation from 2020–2026. She has long been captivated by bonsai and its history, from its origins in China to its refinement in Japan, and loves to experience the timeless beauty of the art form while walking the peaceful paths of the National Bonsai and Penjing Museum. Leading the NBF and collaborating with different bonsai clubs was a unique privilege that deepened her commitment to preserving and advancing the living art of bonsai. Prior to NBF, she held executive-level leadership roles in hospital and healthcare management for more than 25 years.

Director – Mark Arpag

Mark has been practicing bonsai for many years, and is President of the Bonsai Society of Upstate New York as well as a co-founder and organizer of the Suiseki Study Group of Upstate New York. Additionally he presents demonstrations and workshops where he freely shares his knowledge and passion for bonsai with others. He also has several study groups & private clients that often coordinate with Club visits. Mark often assists Wm. N. Valavanis teaching and organizing exhibitions. His love of nature leads him to collect trees and stones in New York state which he often combines to create distinctive award winning displays. Mark has won numerous National Awards for his Eastern White Cedar, Balsam Fir and Larch and has a passion for Native Bonsai and Stones.
Shohin bonsai and bonsai display are of interest to him and he spends a considerable time studying and practicing display and creating shohin bonsai.

Director – Chris Baker

I have been working as the first full time curator of bonsai at The Chicago Botanic Garden since 2014. Prior to that I was a volunteer and “First Curators Apprentice” at The US National Arboretum, Bonsai and Penjing Museum and spent 6 months
studying at the Daijuen Bonsai Nursery in Japan with Mr Tohro Susuki. My interest lies in a more natural style of bonsai and the utilization of North American native species.

Director – Mike Bentley

My bonsai bias leans more towards the naturalistic presentation of bonsai design, but my primary passion with bonsai is the science. As an engineer; I feel that I take a technical approach when working with trees. However, I look forward to exploring the more artistic side of the practice as well.

Director – Joanne Dhody

My first introduction to bonsai was at the Philadelphia Flower Show. For the many years I attended, I would never miss the bonsai exhibit. It wasn’t until 2006, when I had more free time that I joined the Pennsylvania Bonsai Society.

My trees have been exhibited several times at The Philadelphia Flower Show and at MABS. I have at this time about 50 trees, evergreen, deciduous, and tropical.

Director – Mike Kelly

Director – John Kim

Director – Max Levenson

I am a systems‐builder working at the intersection of art, culture, and institutional design, with a focus on strengthening the long‐term infrastructure of American bonsai. My work centers on developing national standards, curriculum frameworks, professional pathways, and conservation protocols to support artists, students, public gardens, and the broader bonsai ecosystem. I partner closely with leading American professionals and the American Bonsai Society to build structures that protect knowledge, stabilize careers, and ensure the preservation and growth of the art for the next century. My goal is to help create the institutional foundation bonsai has never had — but has always needed.

Director – Gabe Monetti

I started my bonsai journey in August 2014 by joining the Triangle Bonsai Society. I was invited to join the TBS Board in late 2015. I became VP on January 2018 and President in January 2020, a position I occupied until the end of 2024; I’m still on the board of TBS as Immediate Past President. I am a member of both the Intermediate and Advanced Study groups in Zebulon, NC. Over the years I studied with many professionals: Bill, Bjorn, Tyler, Suthin, Mauro, Boon, Sergio, just to name a few. In May 2024 I won the Joshua Roth NTC in Grand Rapids. I’m currently part of Mauro Stemberger’s Intensive program held in Durham, NC and scheduled to complete in May of 2028. I’m somewhat of a bonsai traditionalist, as I prefer traditional styles and species (junipers, pines, maples, boxwoods).

Director – Angelica Ramirez

Angelica Ramirez is an aspiring bonsai professional with a diverse background as a cellist, Team USA
archer, helicopter pilot, painter, and amateur photographer. She currently works as the Seasonal Bonsai
Assistant at the Chicago Botanic Garden and also serves as a director of the North American Bonsai
Federation.

Since beginning her bonsai journey in 2019, Angelica has made significant strides, including being the 2023 National Bonsai Apprentice at the National Bonsai & Penjing Museum while also working for the National Bonsai Foundation, and was the first bonsai intern at the Chicago Botanic Garden in 2022.

She is also the founder of Discover Potters and manages the affiliated Facebook group, Discover Potters Community. Passionate about building a career in bonsai, Angelica is dedicated to preserving and growing the art through projects that connect the bonsai community and increase public awareness.

Erik Ridgeway

Eric Ridgeway is a co-owner of Issho-en Bonsai. He started working with Daniel Robinson in 2007 and spent five years at Elandan practicing bonsai. He loves collected native species and is devoted to enhancing and adding deadwood features to his trees. Eric teaches as a team with Victrinia at every opportunity, as they both have a passion for teaching. Eric loves trees with wild, gnarly movement, and his work is anything but sedate. Eric’s love of shitaskusa and kusamono is deeply tied to his love of formal display.

Victrinia Ridgeway

Victrinia Ridgeway is a co-owner of Issho-en Bonsai. She started working with Daniel Robinson in 2006 and contributed to the creation of his biography, Gnarly Branches, Ancient Trees. Victrinia’s style is a blend of naturalistic and traditional bonsai. When teaching with Eric, this can be a great asset, as the conversations and considerations of divergent points of view make for a very dynamic learning experience. Victrinia has also studied kusamono with Young Choe and has assisted her at events and workshops.

Director – John Ruth

John thinks that his interest in bonsai was germinated by seeing the collection at Longwood Gardens outside of Philadelphia. He soon realized that there was no place to walk through the house without stepping on his “trees”. An early goal was to recreate the trees from his backyard. Years later, he has a pretty nice sweet gum. He has never seen a tupelo bonsai, and he has been threatened with legal acton should he ever set his hands on another cryptomeria.

He now has mostly native species, with some traditional material and a few tropicals. He enjoys interacting with, and learning from, the bonsai community. He is an otolaryngologist and triathlete.

Director – Eric Schwartz

Eric is a synthetic organic chemist and has worked since 1990 in various pharma and biotech companies trying to invent new drugs for a variety of cancers or inflammatory/auto-immune diseases.

He has been a bonsai hobbyist for many years now and was lucky to have a great nursery not too far from home where Eric took classes and attended a variety of workshops with noted artists. Later, he enrolled in the first cohort of Colin Lewis’ Ho Yoku school, and gained exposure, information, knowledge, and experience for which he will remain always grateful.

Director – Walter Scott

Happily marrried, I enjoy bonsai, pickleball (Cliché) and writing. After moving to Philadelphia in 2001, I studied with Chase Rosade in New Hope, PA. I have exhibited trees at the Philadelphia Flower Show, the Mid-Atlantic Bonsai Society Festival, and at the US National Show in Rochester, NY. I have contributed articles to both the ABS Journal and
the Newsletter as an Associate Editor. Pennsylvania

Director – Rupesh Varghese

Membership Chair – Larry Benjamin

While I still consider myself somewhat of a beginner learning the art of bonsai, my interest in living things goes back to my childhood growing up at the edge of a little Indiana town. There, I often took walks out to explore the fields, streams and woods in the area. This probably led to my interest in insects which
I pursued in 4-H, leading to the state championship in entomology.

Perhaps it was that experience that caused me to change my major at Purdue from chemistry to biology. As a teacher of biology and chemistry for 37 years, I got an opportunity not only to plan ahead (lesson plans !) but to get along with a wide variety of personalities – very helpful as membership manager.

Publishing Chair – Susan Daufeldt

Susan Daufeldt grew up on a horse farm in Iowa. She is a self-taught naturalist and horticulturalist with an academic background in sculpture and metal working. She is a retired business attorney. Susan fell into bonsai by accident in the spring of 2014 and immediately began collecting and dreaming of bonsai developed from native Iowa material. She is a member of the Iowa Bonsai Association and the Newsletter Editor for the Iowa Bonsai Association and the Eastern Iowa Bonsai Association. She is deeply grateful for years of Gary Wood’s patient instruction in the Art and the support and instruction gained through the Iowa and Eastern Iowa Bonsai Associations.

Newsletter Editor – Roberta Carlson

Webmaster – Daniel White

Daniel’s first job was at a garden center and despite trying different careers, kept getting drawn back to the horticulture industry. Daniel has been with Willoway Nurseries, a wholesale grower in Ohio, since 1999 and is currently their IT Manager. He has been building websites since 1998 and brought that technical experience to multiple bonsai clubs, including the Cleveland Bonsai Club and Columbus Bonsai Society.

Like many, Daniel became interested in bonsai from watching the 1984 The Karate Kid movie but didn’t seriously pursue it until 2017 and founded Black River Bonsai in 2019.

Certified as a grower through the Ohio Certified Nursery Technician program, Daniel has a singular focus on plant and soil health; prefering more naturalistic tree designs that reflect natural struggles while supporting tree health. Daniel founded Black River Bonsai in 2019.