Kilbroney Catholic Parish Registers
December 1, 1871, marriage
John Rorke and Ellen Rodgers
witnesses: James Magee, Mary Rorke
note: the parish register looks like Oct 1, but it is recorded after an entry that says Nov 2.
http://registers.nli.ie/registers
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Civil Registration
Registration number: M/1871/U1/2380/3/15
Registration district: Newry & Mourne
Place of marriage: Roman Catholic Chapel of Killowen, Registrar's district of Rostrevor, Kilkeel Union, County Down
Date of marriage: 1st December 1871
Groom: John Rourke, 42, widower, farmer, resident of Ballintur, father: James Rourke, farmer
Bride: Ellen Rodgers, full age, spinster, no occupation, resident of Ballincurry, father: William Rodgers, a laborer
Married in the Roman Catholic Chapel of Killowen ... by me Daniel Mallon, CC.
signed by John Rourk and Ellen Rodgers
witnesses: signed by James Magee, and Mary [her mark] Rourke
Witnesses at a marriage are usually close friends and relatives, so John might have had a sister Mary. On the other hand, Ellen Rogers may have had a good friend named Mary Rourke.
Sacred Heart chapel in Killowen was built in 1871.