JTown Governing Board
It takes a village to run JTown!
JTown is led with the extraordinary commitment of staff, lay leaders, and volunteers. Forming JTown was a collaborative effort that continues to evolve over time, with passion and determination.
Robin Singer, President
Robin Singer is a monitoring team leader in the Office of Facility Schools at the Colorado Department of Education, Exceptional Student Services Unit. Robin has been a special educator, consultant, principal and Director of Special Education in variety of school settings for over thirty years. She was on the board of the Colorado Special Education Advisory Committee from 2003-2009 and was a Parent to Parent teacher/trainer for the Children and Adults with Attention Deficit Hyperactivity Disorder (CHADD) Robin was appointed to the Colorado Restorative Justice Council in 2016. Robin was also a kindergarten religious school teacher for nine years. She and her husband, Troy, have two sons, Avery and Jacob.
Sheryl Gurrentz, Treasurer
Sheryl Gurrentz is COO & Senior Consultant at Scordo, Gurrentz & Associates, Inc. and CFO at Colorado Food Products, a family-owned international commodity trading company. She specializes in consulting on the design and implementation of strategic operations, financing, and compliance strategies for businesses and non-profit organizations. After earning a degree in Economics from the Wharton School of Business of the University of Pennsylvania, Ms. Gurrentz was a consultant with the Organizational Consulting Division of Laventhol & Horwath and with Denver Career and Business Strategists. She also had an independent business consulting practice for over 10 years.
Ms. Gurrentz has worked with non-profits and their boards, large corporations, and start-ups and entrepreneurial companies. She has extensive experience writing documentation for presentation to boards of directors, private investors, and banks. Her consulting work has helped organizations refine their mission statements and expand their service offerings, identify and evaluate expansion options, build their boards, and implement new fundraising and financing strategies.
Lin Sunshine, Vice President & Secretary
Lin Sunshine, native Denverite, attended Colorado State University. She worked as an Executive Legal Assistant at a large Denver law firm for 25 years before retiring. Retirement didn’t stick and a volunteer job in 2010 became part-time employment in 2012. Recently retired, Lin again finds herself employed part-time--this time as Volunteer Engagement & Events Specialist at 9Health. Lin is married to Gary Sunshine and they have three children Elizabeth (Avi Knoll) Sunshine; Rebecca (Sam) Sunshine-DeWitt; and Benjamin Sunshine. Lin is thrilled to be a part of JTown and looks forward to many years of successful events and relationships within the JTown Community.
Originally from New York and Connecticut, Dooley joined the U.S. Navy right out of high school. After serving, he attended CSU where he earned B.A. in Speech Communication and a minor in History. He later received his teaching credentials at Denver’s Metropolitan State University and began his teaching career in the Cherry Creek School District. While teaching, he received a Masters in Education and Certification in Administration from the University of Phoenix, and successfully obtained a Professional Principal’s License from Colorado's Department of Education. After 25 wonderful years as a teacher and school administrator, he retired in 2019. He teaches 7th Grade Judaic History at Temple Sinai.
Dooley is excited at the opportunities of participating in such a worthwhile group of amazing individuals and serving our growing JTown Community.
Growing up in the funeral business and eventually becoming a Funeral Director is one of Abby's greatest gifts. She was able to serve families in their darkest moments and help them through the most difficult process. Each experience taught her something about life and compassion. Abby knows that life's greatest reward is to give back and she is thrilled to be a part of JTown.
Abby holds a Bachelor of Science in Environmental Policy from Northland College in Wisconsin. Before following in the family business, she worked as an Environmental Educator, a Project Manager for a non profit, and a Graphic Designer.
She's married to R.D. Sewald (22 years now!) and has three fantastic sons; Ethan (20), Mason (18) and Truman (15). Abby also has 2 naughty, but loving, dogs and a geriatric cat.
Sherri Ginsburg is a third generation native Denverite and attended the University of Denver. Sherri has been volunteering in the Denver Jewish community for over 30 years. She has served on the B’nei B’rith Youth Organization Board of Trustees, the Temple Sinai Board of Trustees, and was co-president of the Temple Sinai Sisterhood. Sherri was also co-president of the Cherry Creek Challenge School PTCO. After working in the business world for 20 years as a buyer for Lord and Taylor and Fashion Bar, and Vice-President of Global Security Products, she decided that her heart was in non-profit work and helping others. She has been employed with Cherry Creek Schools for the last 13 years as the Office Manager at Challenge School, and currently as the Activities Assistant at Cherokee Trail High School. Sherri is married to Brett Ginsburg and has two sons, Zachary and Ari Kononov.
Andrew Gurrentz is an Owner and Vice President of Colorado Food Products, a commodity trading company that trades in domestic and imported meat products. He grew up in Chicago, IL and went to Indiana University. He has been actively involved in community service for over thirty years, including serving as a volunteer coach for youth basketball teams, a Board Member of Black Tie Optional (a Jewish social group), and Co-President of the Brotherhood at Temple Sinai. He has also advocated for youth in the foster care system as a Court Appointed Special Advocate. In addition, he is currently on the Board of the Anti-Defamation League, Mountain States Region, where he has been actively involved in supporting the No Place for Hate program in schools and the annual Governor’s Holocaust Event.
Janet Johnstone is a technical writer, proofreader and editor. She has written computer user, procedure and policy manuals in IT departments for varied businesses,
including banking, shipping, telecommunications and grocery industries. She also has an elementary school teaching credential and has either volunteered in or worked at schools for decades.
Her volunteer work began in high school, where she volunteered for two summers at the local Head Start program. Besides schools, Janet has volunteered at the JFS Food Pantry, libraries, women’s shelters, and Sunday school classes at three different temples. Volunteering is her passion, and with JTown she has found a similarly compassionate, caring group of people who accept her, quirks and all! JTown is home.
Janet is fortunate to have a wonderful family that includes her husband Bruce and two daughters, Margaret and Katie. Her entire family enjoys JTown as much as she does! She enjoys cooking, gardening, hiking, reading and her pets.
I grew up in the Suburbs outside of Boston. I graduated from Simmons College with a BS in Physical Therapy. I relocated to Denver in 1995 and have been loving it ever since. Becoming a single mom of three children in 2005, I decided a career change was necessary for my lifestyle.
I have been a full-time realtor since 2006. Getting into the business at the start of the crisis reinforced my hard work ethic and follow through. Raising my children on my own also forced me to prioritize, multi-task, and manage crises big and small.
I have volunteered for various organizations over my 23+ years in Denver. Some formal such as being a board member at Temple Sinai and Belleview Elementary, some informal such as volunteering at JFS or the Pet Pantry. Through it all, I was looking for something to call to me.
Since becoming involved at JTown, I feel like I am home. I have met a group of like-minded individuals. Whether it is a movie night with the ladies, services, or a weekend of service at Project Our Town, I have the passion and desire to be involved.
I was born and raised in Southern California, earned a BA in marine biology at California State University, Fullerton. I taught Advanced Biology and research classes at Heritage High School for 17 years. Recently retired, I volunteer about once a week as a docent at the Denver Zoo. I bowl, golf, love the theater, trivia (Jeopardy), travel, animals, baseball, and outdoor activities.Judaism has always been an important part of my life. I grew up going to a traditional synagogue until high school when my family joined a Jewish organization very similar to JTown. It was geared to all ages with many options for attending different programming. I also was part of a performing folk dance troupe, which was a terrific experience. During summers I was a counselor at Brandeis Bardin Institute in California and was a Bat Mitzvah there at 16 after having taught myself enough Hebrew to read my portion. Leaving a “synagogue” setting for awhile but still celebrating the important Jewish events with my family, we joined Temple Beth Shalom after moving to Colorado, leaving after my kids went through their Bar and Bat Mitzvah. Now years later, I discovered JTown and feel at home. It is hard to put into words but the welcoming and warmth of its members, social time along with services, and extra social and intellectual programming, have all made an impact on my life and my Judaic faith.I am very excited to be part of this community on a planning level and I hope I can make a large contribution to something that is important to me.