makes you wonder how did he get here. >> lift off, we have a lift off. >> reporter: 77-year-old maury foresterof the team that helped put a man on the moon. during the saturn and apollo programs. he worked for a subcontractor that designed crucial launch components. >> i look at it now. i'm amazed that it happened. it was so complex and so involved. there were so many people. >> reporter: his certificates and awards could fill a corner office. and yet here he is in a broom closet, a highly trained electromechanical designer on the business end of a mop. >>> in 2014, maury suffered a stroke or something like it. doctors aren't quite sure. but the result was clear, a major loss of cognitive function. maury says it was humbling and humiliating. but he knew if he wanted to keep on living, he had to keep on working. he originally took this job solely for the exercise. but over the last few months he has become an integral part of the school community. >> i just love it. they're happy to see me and i'm happy to see them. i care very much for them. >> reporter: and the students clearly feel the same.