Congregation Leaving St. Mary's Pro-Cathedral, Dublin (1901)
(DVD, 2007) British Film Institute
Released in 2007 in the DVD "Mitchell & Kenyon in Ireland", and is a close-up shot of the people leaving St. Mary's Church, or Pro-Cathedral, the Chapel in Marlborough Street in Dublin.
A shot like this should at least show us the exterior of the Church they are leaving - maybe that is the content of another clip, but for this one we get the close-up of the crowds only. Not much to look at, except for the boy that discovers the camera.