The very first Praesidium in Perth was formed in Bayswater many years before the Curia was formed.  The Curia was first established in 1985 with Praesidium from Bassendean, Maylands, Embleton and Midland. Meetings were held in the evenings at St Joseph parish Bassendean and later in the daytime at Maylands parish. Preasidia from Bedford, Lesmurdie and Lockridge joined in the 1990s.

Fr Michael Rowe was the Spiritual Director.

Meetings held at Venerable Edel Quinn Centre records from March 2007. President was Br. Joe Kirby until 2009. Sr. Pat Cornelious 2010, Sr. Stella McLaughlin 2011 - 2017, Sr.Betty Flynn 2017 - 2024, Sr. Roseanne Quinn is the current president.

Our Lady Queen of Heaven joined in 2017, with Kelmscott, Our Lady of Good Shepherd. Our Lady Queen of Peace, Armadale in 2018, Our Lady of Perpetual Succour Bayswater in 2019, Virgo Potens Belmont in 2020. Lesmurdie retired in 2021 and Kelmscott in 2024.

Meetings are presently held at Venerable Edel Quinn Centre 4th Monday of the month 10.30am. Fr Brian Limbourne elected as Spiritual Director after the retirement of Fr Michael Rowe in 2024. Currently EDC has 7 Praesidium, Curia members 40, Auxiliary members 150,  1 Junior presidium 12 members and Praetorian's 4.

Works of service - Visitations to the home-bound and Aged Care Facilities, monthly Masses in two nursing homes, Rosary is recited in most praesdium parishes weekly, Eucharistic Visitations by members to those unable to attend Masses, Transportation to Mass for parishioners, Rosary recital before funeral Masses and support for families at the wake. 

Promotion of the of Mary during the year in parishes, notices in the bulletin, evangelisation and recruitment of new members is an ongoing work by members. Sr Betty Flynn is our extension worker and has visited several parishes to speak with priests and praesdium in their parishes. We have four parishes currently investigating the response for a Legion in their parishes. Two praesidium have the Frank Duff prayer group in their parishes. Divine Mercy Chittering has been slow to get going but Fr Paul Fox is hoping to have a revival there to get it up and going. Each May and October presidium hold devotions to Our Lady with a positive response from parishioners in those parishes that this takes place in. Legionaries hold many roles within their parishes, Lectors, Musicians, Children's Liturgy, Eucharistic Ministers, and Sacramental programs. Armadale, Our Lady Queen of Peace run the "Walk for Mary" each October in conjunction with the Sisters of Schoenstatt. They walk from the parish to the Shrine, praying the Rosary and singing hymns. Sr Lisette welcomes them with cool drinks and afternoon tea with several of the Sisters joining the Walk.

Praesidia in the Curia are;

St Josephs, Bassendean

Our Lady Queen of Heaven, Maida Vale

Our Lady Queen of Heaven, Armadale

Holy Name of Mary, Midland

Our Lady of the Way, Lockridge

Mother of Perpetual Succour, Bayswater

Virgo Potens, Belmont