Dalton joined HealthTree in 2024 as the CLL and MF Education Manager. He is passionate about helping patients gain a better understanding of their health and treatment and sees it as a way to help empower individuals and their families who are affected by these diseases. Prior to joining HealthTree Dalton earned a Master’s Degree in Oncological Sciences while studying various different blood cancers. When not interacting with patients he is an avid snowboarder and hiker.

Jason Mook is a 47 year-old Southern Oregon resident who lives with his wife (20 years in November 2025) and two boys aged 10 and 8. When not navigating his cancer journey, Jason enjoys camping with his family, hiking and golfing, and works as an Executive Pastor. He is passionate about his faith and his family and finds strength in his close relationships. In November 2024, Jason was diagnosed with CLL (Chronic Lymphocytic Leukemia) at age 46. Since his diagnosis, he has become a passionate advocate for blood cancer awareness and the mission of HealthTree Foundation, sharing his story to help others understand the realities of living with CLL and bring hope to those that are struggling. Through his journey with CLL and "watch and wait" status, Jason has learned the importance of annual physicals and blood work, regular exercise, a balanced and nutritious diet, and close relationships to enjoy a life that thrives in the midst of fighting cancer. He is committed to using his voice to bring comfort to those that have been touched by cancer, and believes that sharing our stories can make a difference for patients and families facing similar challenges.