Mary B. (O'Brien) Long, 88, of Yarmouth, MA passed away peacefully on Saturday, May 7, 2022.

Born in Orange, NJ, she was the daughter of the late Austin and Elizabeth (Aaron) O'Brien. Mary lived in Cape May, NJ and Cape Cod most of her life.

Mary loved dogs and spending time at the beach. Her favorite beach was Reed's Beach in New Jersey.

Survivors include her nieces and nephews, George Stewart, Austin O'Brien III, and Dawn Nardone; her sister-in-law Lee O'Brien; a great-nephew David Stewart; and many other relatives.

She is predeceased by her life partner of over 30 years, Barbara Bockstover; and her siblings Austin O'Brien, Jr, and Betty Rood.

A family service will be held at a later date.