Almost a half century after his death in 1953, the Welsh author Dylan Thomas continues to capture the attention of scholars and critics. Though he attained some measure of fame before he died, he never enjoyed financial prosperity. His life was plagued with difficulties of all kinds, and he was only 39 years old at the time of his death. Some of his works, such as Fern Hill and Do not go gentle into that good night are frequently included in anthologies,...