Woodson, R.: - R. Dodge Woodson is a Master Plumber with almost 30 years' experience in the construction field, 21 of them as a self-employed plumbing contractor. The author of numerous McGraw-Hill best-sellers, including Plumbing: Tips, Data, and Rules of Thumb, he has taught plumbing code classes and apprenticeship classes at Central Maine Technical College. As a consultant, Woodson works with a number of plumbing contractors and has frequently been interviewed on the radio on plumbing subjects. He lives in Maine.