Kaylor Glassman, Director of Programs

DYF Web-97Kaylor’s first DYF program, when she was five years old, was a life-changing week where she gave her first shot, was allowed (and encouraged!) to have her first milkshake, and made some amazing “diabuddies,” some of whom she is still friends with today!

Kaylor is thrilled to contribute to DYF by overseeing all 17 programs, leading the Healthcare Professional Advisory Board, and moving DYF’s Strategic Plan forward with sustainable, successful programs. She enjoys baking, reading, swimming, and hiking with her dog Riley.

Contact Kaylor at glassman@dyf.org or 925-680-4994 ext. 102

Christi Rossi, Director of Development

Christi joined the DYF team in April 2017 and leads DYF’s fundraising and communications efforts. She brings more than 15 years of nonprofit experience, previously working for Carondelet High School, Girl Scouts of Northern California, and Larkin Street Youth Services. Christi is grateful for the opportunity to connect the DYF community and strengthen DYF as an organization. She also volunteers as a Canine Training Partner at Dogs4Diabetics and serves on the Development Committee of Cristo Rey De La Salle High School. Christi loves traveling, food and wine, and being a mom to her son, Dane.

Contact Christi at rossi@dyf.org or 925-680-4994 ext. 104

Marissa Clarke-Howard, Development Manager

CsDld1duMarissa joined DYF in April of 2018. After graduating from SFSU with a degree in theater, Marissa spent the first 8 years of her career in the child development field as a teacher and administrator. In 2016, she moved into the nonprofit sector as a member of the development team for the American University of Armenia. Marissa loves working with the DYF community and donors to serve a mission that so closely aligns with her child development values. The highlight of her first season with DYF was participating in Family Camp, where she got to know DYF’s families personally and share with them a part of their T1D journey.

While not at work, you are likely to find Marissa performing in local theater, reading about food, or perusing a local farmers market. She loves to cook, hike, and spend time with her family.  Marissa also serves on the Advisory Board of The Quinan Street Project.

Contact Marissa at clarke-howard@dyf.org or 925-680-4994 ext. 107

Marie Murphy, Marketing & Communications Manager

Marie Murphy
Marie joined DYF in February 2020 and oversees DYF’s communication efforts. She brings more than 15 years of graphic design and communications experience, with a focus on education and serving non-profit organizations. Having freelanced for many years while raising her children, Marie is grateful to come full circle, integrating her degree in International Relations, her experience in communications and her desire to serve the greater good by supporting the DYF community. When she isn’t working, you can find her spending time with her family and her pug Pico and her most favorite thing to do is skiing when she can.

Contact Marie at murphy@dyf.org or 925-680-4994

Katelynn Von Stieff, Director of Finance and Administration

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Katelynn experienced her first dose of camp magic as a camper in 1990 and from then on she’s been hooked! She has moved up the ranks from camper, counselor, camp office assistant, to her current full-time role as DYF’s Director of Finance and Administration. Katelynn spends her work days wearing many hats from HR management, to conducting the annual financial audit and anything in between. She enjoys doing her part to ensure that everyone gets to experience that same camp magic!

In her time away from DYF, Katelynn enjoys cooking, painting, refurbishing old furniture projects, and spending every second she can soaking up the joy and wonder of life with her daughter, Lillian.

Contact Katelynn at vonstieff@dyf.org or 925-680-4994 ext. 108

Stephanie Beinke, Registration Coordinator


Stephanie joined DYF in January 2019. She graduated from California State University, Chico with a degree in Recreation Administration and spent the first 10 years of her career in the hospitality industry. Stephanie is excited to move into nonprofit organization and support her community with the power of recreation and education.

In her free time, Stephanie enjoys traveling, cooking, and spending time with friends and family.

Contact Stephanie at beinke@dyf.org or 925-680-4994 ext. 105

Dr. Justin Altschuler, Medical Director

Justin color headshotDYF’s diabetes education and care is led by our Medical Director, Dr. Justin Altschuler. Dr. Justin’s life has been shaped by Bearskin Meadow Camp since he was diagnosed with type 1 diabetes at the age of 9. He attended Bearskin as a camper, counselor, program coordinator and medical staff for over 20 years. In 2002 he met his wife (Dr. Sarah) at camp and they now attend every summer with their kids Lukas and Aliza.

Dr. Justin is excited about continuing the “Bearskin Magic,” and leading DYF’s year-round programs. Dr. Justin is passionate about the sense of community and belonging DYF creates for those affected by type 1 diabetes.

James Walker, Facilities Manager

untitled-1James earned his North Carolina Unlimited Plumbing License in 1982. He worked with a large plumbing company in Durham, NC until 1986 when he accepted a Maintenance Supervisors position with Duke University Medical Center. In 1996 James left Duke for a Maintenance Director position with Beverly Health Care in Brandon, FL. He started Walker’s Plumbing Service in 1999. In 2006 he sold WPS to start up a renewable energy company Integro Earth Fuels in Asheville, NC. At Integro they built the world’s first wood torrefaction pilot plant. James ran the pilot plant for 14 months, then moved into facilities development where he took the processes developed in the pilot plant and worked with engineers to develop a functional production facility. During the development of the production facility James designed, constructed and managed Integro’s research lab. Once construction started on the Integro production facility he moved into the Project Management and Safety Manager rolls. Due to changing regulations and markets for torrefaction James decided to leave Integro to become a member of the DYF family.

James has been an active student of the Martials Arts of Shito Ryu Karate and Hakka Ryu Jujitsu since 1992. In 2013 he helped develop a self-protection class for kids in Greenville, SC.

Contact James at walker@dyf.org or 559-335-2403