Sean Palfrey is a parent, teacher, practicing pediatrician, and professor of Pediatrics and Public Health at Boston University / Boston Medical Center. A 1967 graduate of Harvard College, he has practiced and taught clinical medicine in Massachusetts for more than thirty years, and he spends a good deal of his time advocating for better child health programs and policies, and the prevention of illness and sadness. He served as president of the Massachusetts Chapter of the American Academy of Pediatrics, and he has been a legislative advocate for child health programs and policies since the late 1970s. Sean is a global traveler and photographer (his websites are www.palfrey.comand http://www.flickr.com/photos/palfrey-com/), a writer of children's fiction (http://www.childrenofthegreatwall.com ), an outdoorsman, and an enthusiast for wide diversity of college life at Harvard, and co-teaches the Freshman Seminar entitled "Child Health in America" with Judy. Sean and Judy have three children, John, Quentin, and Katy, and four grandchildren, Jack, Emeline, Drew and Serena, any and all of whom may be found playing ball of some sort in Randolph Courtyard at unexpected times of day and night.