The research on bone-marrow transplantation mirrors the arc of many medical advancements. I was one of the early beneficiaries. April 19, 2026 12:00 pm ET The writer, Laura Landro, in 1992 with her brother Chris, who donated his bone marrow. Johnny Simon/WSJ, Laura Landro, Science Photo Library “USA250: The Story of the World’s Greatest Economy” is a yearlong WSJ series examining America’s first 250 years. Read more about it from Editor in Chief Emma Tucker.