Bob Park  •  Chair

Activist working on storm water management and the MSD upgrade, mass transit, sustainable food production and progressive political engagement. Bob's work is public health research.

Enid Nagel  •  Vice Chair

Marilyn Wall  •  Executive Committee Member

Activist working on Sewer Overflows, Dirty Steel, Transportation and other topics. Past Chapter Chair and past member of the Sierra Club National Board of Directors.

Gail Lewin  •  Executive Committee Member Political Chair

I have been a Sierra Club member since 2003. I have served several terms on the Executive Committee and as the Chair of the Miami Group Sierra Club Political Committee. That Committee has endorsed numerous candidates for local, state and federal elections. It is important to let our members know which candidates support environmentally friendly policies, laws and regulations. In 2018 we were very active in the Cincinnati and Dayton geographical areas. At ExCom I have served as the ExCom liaison to the Political Committee and I have performed various functions in support of the Group's Treasurer. Having a sound financial condition helps the Group succeed in all of its sponsored activities such as Outings, Memorial Trees, workshops, the monthly Innings, our Annual retreat, and more.

Muslim Contractor  •  Executive Committee Member

I am a Chemical Engineer managing a corporate R&D laboratory making energy curable inks. I have climbed in the Himalayas and been a Local Secretary of the Himalayan Club. My love of the outdoors and concern for the environmental made me join the Sierra Club in 2009. I am a member of the Executive Committee of the Miami Group and have served on the Nominations Committee and Memorial Grove Committee. My goal is to be more involved with Sierra Club Outings and ICO Groups.

Brian Kwiatkowski  •  Executive Committee Member

I'm a Senior Geomorphologist, Certified Professional Ecologist (CE), Construction Superintendent, and Project Manager, responsible for the design and construction of ecological restoration projects, watershed management plans, and sustainable storm water systems. I've collected and analyzed data on more than 400 miles of river and stream throughout the U.S., and contributed to storm water best management practice (BMP) manuals addressing open channel design, stream restoration, hydraulic structures, storm drainage facilities, water quality improvement, and green infrastructure planning. I am responsible for watershed assessment, restoration design, data analysis and calculations, developing plans and specifications, project management, and construction oversight. International traveler.

Brian Williams  •  Executive Committee Member Dayton

A Sierra Club member since 2003, Brian is serving his first term as a Miami Group Executive Committee member. He is a past president of the Cincinnati Newspaper Guild and spent 20 years working in various corporate IT shops around Cincinnati. He worked on the club's now-defunct Morning Glory Bike Ride and now rides the bike trails around Dayton, where he has lived since 2016. He attends monthly Ohio Chapter Executive Committee meetings as the Miami Group's representative.

Kaniz Siddiqui  •  Executive Committee Member

Energy Committee Vice Chair, Fundraiser and Chef, member of the Hamilton County Soil and Water Board of Supervisors.

Barry Randall  •  Executive Committee Member Outings Chair

As a Sierra Club member for many years, I have tried to live our motto “Explore, Enjoy and Protect”. An avid hiker, backpacker, paddler and cyclist, I’ve enjoyed Sierra Club activities for many years. In 2013 I became certified as a Miami Group Outings Leader so that I could encourage others to enjoy the natural world as I have throughout my life, believing that those who experience the outdoors will come to love, respect and protect it. In 2018, I became the Miami Group Outings Chair, inheriting a vibrant and active group of volunteers that every week introduces new people to Sierra Club and the outdoors through a variety of activities. Recently we have, thanks to our dedicated leaders, re-introduced Backpacking School and Wilderness First Aid classes to further encourage outings participants and connect with the community. More recently we have begun a partnership with the Girl Scouts of Western Ohio, lending our outdoor expertise to enable more young women to enjoy a new GSWO high adventure program and learn about Sierra Club.

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