Welcome to MMM Worldwide

We are religious sisters sent forth to heal the world and relieve suffering in areas of the greatest need. Desiring to share Christ's healing love, our Sisters come from 19 countries to bring health services to people all around the world.

The Medical Missionaries of Mary are an international missionary congregation of women religious, founded by Mother Mary Martin, in Nigeria, in 1937. The Congregation and the members are also known by their official initials MMM.

The aim of the Medical Missionaries of Mary is to seek God and the Kingdom through sharing Christ’s healing mission in the world today.

Where We Are

Worldwide MMM Sisters operate in areas of the world with the greatest need for health and healing care. Locations are places where MMMs are invited to communities by the local leadership to provide holistic and healing resources. Various medical missionary work is provided according to the needs of the local people.



Nationality: Irish
Congregation Register No: 214
D.O.B. 24.04.1930
First Profession: 06.01.1952
Died: 01.02.1981 Aged: 50 years

Mary Deehan, from Ardmore, Co. Derry, who entered MMM in Drogheda on 3 October 1948, seems to have fitted a lot into her years with MMM. After catering training in Cathal Brugha Street in Dublin, her ministry covered time in both convent and hospital kitchens, the sewing room in Drogheda, and the Apostolic nunciature in Dublin.

She was local superior in Beechgrove, superior in Rosemount and finally was the bursar in Rosemount. She also served in the Apostolic delegation in Lagos, Nigeria, from 1963 - 1967.

In each of these roles she is remembered as being very capable. She was also very kind and known for her warm hospitality. She put much effort into the formation of younger Sisters in the culinary arts.

For years she suffered ill health but it was a road accident that was responsible for her early death. She was one of the passengers in a car in an accident that claimed the lives of three passengers on a road just outside Dublin. Sr. M. Michaeli McMeekin and Eilish Kelly-Coffey, the sister of Sr. M. Patricia Kelly, MMM, were the other two victims.

Sr. Francesa is buried in Drogheda.


How to get Involved

Prayers for the World

724677587603732 2747113316841871279 o
955067524564736 2539919875153110305 n
987168844687937 4330850395645705947 o
Rep Benin Rose Mogun
England Solihull Ruth Percival Nemah
Honduras healing plants ccol
So Sudan-Jun 2019-Vegetables to consume and sell
3107389615999172 4776117617289068544 n

Sorry, this website uses features that your browser doesn’t support. Upgrade to a newer version of Firefox, Chrome, Safari, or Edge and you’ll be all set.