Louis O. St Aubin, Jr, died Tuesday morning, July 11, at the home he shared with his life partner, William Pitt. St Aubin was the owner of Brookside Antiques on Water Street for more than 40 years and was an expert on Mt Washington Art Glass.

He wrote the first book on Pairpoint Lamps – Pairpoint Lamps: A Collectors Guide – as well as editing two other books on Pairpoint and Mt Washington Glass. He was a founder of the former New Bedford Glass Museum, the New Bedford Glass Society and the Society of New Bedford Glass and Fine Arts. He also was a founder and past president of the Mt Washington Art Glass Society, as well as a past president of the Southeastern New England Antique Dealers Association.

St Aubin was a founding member and current president of the New Bedford Preservation Society, and was a goodwill ambassador for the City of New Bedford. He had a love and passion for the city, its history, its architecture and its contribution to the worldwide glass industry.

As an art glass expert, he was an advising curator for the New Bedford Whaling Museum on two exhibits, “Masterpieces of Mt Washington Art Glass” and “Smith Brothers: Glassware.” He also served the New Bedford Whaling Museum as a member of the collection committee.

In addition to his life partner, he is survived by his mother Barbara St Aubin, and his sister Susan Wilson St Aubin of Reno, Nev., and aunts, uncles and cousins.

St Aubin’s wake was held at his home and his funeral at the Grace Episcopal Church of New Bedford.