Pictured clockwise are Brooke, 7; Emily, 13; Caitlin, 10; and Carly, 4.
"To go to a swimming pool for the summer, or belong to a summer club ... we tried all those things, and it's lacking something," said mom Melanie Greenberg (not pictured). "Brooke's not there. We're not a family without Brooke." (Courtesy Greenberg Family)