New London — Nearly 40 years ago, Ric Waterhouse got his start in hairdressing working for Nancy Hennegan at Nancy’s Salon. Now, they’re reunited again — but this time, Hennegan is working at Waterhouse Salon on Bank Street. Waterhouse said they’ve come full circle. After operating on Meridian Street adjacent to The Garde Arts Center for 40 years, Hennegan closed up shop and moved with her three stylists and receptionist to Waterhouse Salon, as of Nov. 1. Hennegan said she was, “ready to get rid of the business part of my life” and looking for more time to golf, do yoga, and travel with her husband. She’s not looking to retire yet,…