Board of Directors

Diana Giraldo - President, Co-Founder

As a child growing up in Bogota, Colombia, Diana spent nearly every Sunday enjoying active fun on 70 miles of closed roads and eating ice cream at Ciclovia! Now as a naturalized citizen of the USA she is determined to bring the same smiles and laughter to the residents of Southwest Florida. Diana is an avid dog lover and volunteers with local rescue Senior Paws Sanctuary.

Diana has been a resident of Lee County for over 12 years and a bicycle accident survivor. She is inspired by functional community development, visualizes community growth encouraging social interaction, sensible urban design and a healthy community for all. Diana holds a Bachelor’s degree in Architecture and Urban Design and a Master’s Degree in Management.

It is an honor for Diana to be part of Streets Alive SWFL and one of the co-founders of the organization; Her favorite tag line is “ Individual choices can change an entire community”. Together we can make a difference!

Jessie Marcolini - Vice President

Jessica (Jessie) Marcolini is an Instructor at Florida Gulf Coast University (FGCU) who teaches courses on sustainability, environmental science and civic engagement. As an FGCU grad, Jessie has seen the Southwest Florida area grow over the past decade and enjoys exploring and engaging in the community. Outside of work, Jessie’s hobbies include biking, exploring new areas and visiting the local dog parks and beach with her pups Shelby and Remington.

Anne Stutz - Secretary

Anne spent the majority of her adult life in Denver Colorado. December of 2015 she and her husband jumped off a 2000 mile cliff moving to Fort Myers.  As a casual bike rider in Denver, Anne enjoyed 20+ mile weekend multi use path rides  and short rides for for errands near her home.   She quickly learned not all areas are bike friendly. While bicycling on a four-lane road in Fort Myers traveling in the bike lane the bike lane abruptly ended about a half a block from a major intersection. With no shoulder or sidewalk and being a casual rider this was terrifying.

That incident may have scared Anne away had it not been for finding like-minded people through social media.  She now rides with local bike groups. After learning the hard way that Fort Myers does not have complete streets she applied for the board to help make southwest Florida more livable and safe for all.

Anne can be found daily somewhere between Venice to Marco Island working as a Territory Manager for OneCoast.  Being on the water and biking with friends are her happiest places.  She volunteered with United Way of Denver, National Alliance on Mental Illness of Colorado, Denver Heart Walk, and was a founding Board member of a High school Lacrosse Booster club.

John Lavalla - Treasurer


Diane Holm - Director, Co-Founder

Diane has been involved in health education for more than 15 years in Lee County. She will help anyone find fun, safety and fitness in walking, biking, and commuting without a motor! She wrote the grant that enabled Streets Alive to become a 501(c)3 non-profit organization to ensure longevity of the open streets concept. She is an active participant in SWFL Critical Mass, and has educated thousands of youth in helmet fit, safe walking, and safe bicycling.

With her husband Mike, she owns and operates Fort Myers Schwinn Cyclery. She holds a Bachelor’s Degree in Journalism. She is a lifetime member of Caloosa Riders Bicycle Club, a board member of the Lee County Injury Prevention Coalition, and an alternate for the Metropolitan Planning Organization’s Bicycle Pedestrian Advisory Council.

Barry Bratton - Director

Barry grew up in a rural midwestern community where he spent as much time outdoors as possible, usually on his bicycle. As a career Naval Aviator, he often packed a bicycle aboard his aircraft or ship; and had the opportunity to experience bicycling on several continents.

A resident of Lee County since 2009, Barry is excited to see the energy supporting a new vision of making Southwest Florida a healthier and safer community for all residents across all modes of transportation, including pedestrians and bicyclists. He is a member of the Caloosa Riders Bicycle Club and participates in Southwest Florida Critical Mass rides and civic events.

Barry is a recently retired airport executive and is now working as an associate with an aviation executive search firm. He holds a Bachelor of Science degree in transportation as well as a Master of Business Administration degree.

Photo of Oscar Rattenborg

Oscar Rattenborg - Director

My name is Oscar Rattenborg and I have always lead a double life of raising a family by working in IT, advising students, and teaching college biology and anatomy.  The other part of my life has been building custom tandem bikes and promoting bicycle safety and access.  Now that I am older, I can dedicate more time to advocacy.

What I am advocating for is safe environments for people to commute, recreate, and interact.  We already have lots of space dedicated to cars and sparse public transit, but we need to do a better job of facilitating non-motorized connections between communities.

In addition to providing low cost transportation and safer places to travel, safer streets will allow for people to meet and interact. There is nothing more rewarding that going for a ride or walk and making new friends.  You may not be immediately embraced or embrace all whom you meet, but over time, all are part of your community and you move from a “How’s it going” to more in-depth discussions.

Let’s meet in Streets Alive with people celebrating life and safely getting to and from life’s many engagements.

Rob Siebert - Director

Rob is a determined cyclist who helps everyone who wants to ride a bike to feel comfortable doing so! He is the founder/leader of Southwest Florida Critical Mass, home of eight monthly group rides which are open to the public at no charge and occur at different locations throughout Lee County. They are self-supporting, slow rides focused on socialization, safety and fun!

Rob is a Realtor. He is a single parent of twins, currently attending college. He manages the SWFL Critical Mass Facebook and SWFL Cycling Meetup pages.

Michelle Umbenhauer - Director


Lee Waller - Director

Lee grew up loving life outdoors in the small town of Alva, FL.  He was always on a bike, using it for transportation as well as recreation.  He continues that tradition today as a bike commuter and avid recreational cyclist.  He has ridden across the state of Florida in a single 170 mile ride as well as raced in numerous triathlons.  He currently serves on the Board of Directors of the Caloosa Riders Bicycle Club as the Vice President of Rides.  Lee is also a runner, competing in everything from 5K races to a full marathon.  In addition, he enjoys stand-up paddleboarding and kayaking.  As a heavy user of our Southwest Florida roadways, on foot, 2-wheels, and motor vehicles, he sees a huge value to making our streets safer for all users.

Lee graduated from Florida Gulf Coast University with a bachelor's degree in Environmental Studies.  He works for Lee County government managing and restoring environmentally sensitive lands as part of the Conservation 20/20 Land Program.

Past Board of Directors

-Ann Pierce

-Megan Fasig

-Isobel Hitchcock

-Dana Foglesong