Matt Rosenberg has worked as the keeper at Nubble Light for 15 seasons and is a teacher at York High School. After 15 seasons on the island, Rosenberg, 52, said its pull has never faded. “If something from 1879 starts to erode from rust, I can take the rust off, but I’m also taking off the history,” Rosenberg said. KEEPING UP WITH REPAIRSNubble Light keeper Matt Rosenberg mows the lawn on July 1. Rosenberg said that before becoming the lighthouse keeper, he worked in landscaping, plumbing and carpentry, and spent a decade guiding whitewater rafting trips.