The townland of Ballycoffey or Ballyhoy is in the parish of Lisnadill in Armagh County. It is labelled number 6 on the map.
PRONI records: OS/6/2/12/1 (Surveyed 1835. Engraved 1835.); OS/6/2/12/2 (Surveyed 1835. Revised 1860. Engraved 1860 (Stat file copy).); OS/6/2/12/3 (Not Received.); OS/6/2/12/4 (Surveyed 1835. Revised 1905-06. Reprinted 1931-1947. Published 1931 with mss markings in red and stamped references 2566, 2567, 2573.); OS/6/2/12/5 (Surveyed 1906. Revised 1948. Levelled 1888 and 1906. Levels revised 1949. Published 1953. (2 copies) - 1 being reprint 1953, 56, 61).); VAL/12B/10/11A, VAL/12B/10/11B, VAL/12B/10/11C, VAL/12B/10/11D, VAL/12B/10/11E (Valuation annual revision list.); VAL/2B/2/8AC 1862 (Griffith valuation list.C 1862).