Fr T.J. Linane, From Abel to Zundolovich, Vol. 2: Biographies of Priests on the Australian Scene up to 1900, 1980, p 82:

Corcoran, Edmund John, CM, Irish
Victim of Mental Anxieties
This youthful Vincentian had only a dozen years of priesthood, four of which were spent in Australia. He had the reputation of being very zealous in his work and an eloquent speaker. County of origin has not been ascertained, but his education and priesthood studies were received at St. Vincent's College, Castleknock, and Blackrock College, Dublin. After ordination in 1887 he spent three years on the home Mission, living at one of the Irish Vincentian Houses. In 1890, he came to Sydney to join the staff of the Vincentian Fathers at Balmain East, the first parish assigned to that Order after their arrival in 1887. Fr Corcoran worked very zealously especially in visitation, but in 1893 cracked under the strain and had to be relieved of all duties. No doubt, his Superior, Anthony Boyle C.M., Vincentian founder in Australia, was extremely kind, but the only course of action open was to allow his subject to return to Ireland. It would seem that there was a partial recovery. He gave Missions in Ireland, England and Scotland) but whether this applies to the 1894-9 period or 1887-1890 is not clear. At the time of his death on 10 May 1899 he was on active duty at Phibsborough. Obsequies took place at St. Pater's Church in that Dublin suburb, and burial at the Vincentian Cemetery, Blackrock. The age was a tender 39.
(Footprints, Vol. 2, No. 10)
Ref.: MDHC File, Torquay, per Liam Byrne, Librarian, Dublin.