Mother Theresa Anne McLaughlin BEM (1890-1965), usually called "Cissie", was an Australian Catholic religious sister who succeeded Eileen O'Connor as leader of the charitable society, Our Lady's Nurses for the Poor.
Theresa McLaughlin was born in 1890 to a poor farming family in Sodwalls, in the Central West of New South Wales.
In 1913 she met Eileen O'Connor, who with Fr Ted McGrath, was in the process of founding a society of women to look after the sick poor of Sydney in their own homes.
As Eileen was severely disabled and Fr McGrath clashed with his superiors with the result that he was temporarily expelled from his order, McLaughlin's practical skills became essential to the continuance of the work.
She retained that role until her death, overseeing the order's expansion and working tirelessly to gain official recognition from the church.