I believe this is a young Prof. Gerald Korenowski from the chemistry department. He taught me undergraduate physical chemistry in the early 1990s.

His current info is at http://www.rpi.edu/dept/chem/chem_faculty/profiles/korenowski.html

Thanks for the id! It's really helpful to get information from people who were around at the time the pictures were taken. Once I have a name, I can check the photos we already have on file and compare them to the orphan photos. A photo similar to #13 (except he isn't wearing glasses) is in Dr. Korenowski's file. Mystery solved.

Yup, that is definitely Jerry. Probably taken in his first year at RPI, which would have been the 81-82 school year.

The formula looks like something from Non-linear Spectroscopy.