Mary Browner (née Cushing) was the youngest of three Cushing sisters.
Not knowning about that Sarah had tried to seduce her husband, she was manipulated by her sister to mistrust her husband, straining in the marriage. Sarah introduced her to a friend, Alec Fairbairn, who Mary took a likening to and began a relationship with. But when her husband found out about it, he followed them to New Brighton where he killed them at sea.
Both she and Fairbairn had one of their ears cut off after their death by Browner and was meant to be sent to Sarah, but because Browner hadn't known Sarah's new address and only posted the box to 'S. Cushing', the ears fell into the possession of the third sister Susan, who was still living at Sarah's old address.