please also exhaust
http://freepages.genealogy.rootsweb.ancestry.com/~rosdavies/SURNAMES/G/Gi.htmthere are more Gilchrist in Dunsford/Dunsfort than I extract below
GILCHRIST . Ardglass; Dunsfort popular surname in this parish in 1836 V17 p4, 68 OSM
Mr. Hugh GILCHRIST & Sons Ballee area gave £1.6.6 to Ballee Famine Relief Fund in May 1847 FCD p 24
Hugh GILCHRIST . Dunsford of Sheepland; married Margaret Keaghey 18 Mar 1815 at Ballyculter Church of Ireland; died 15 Mar 1840 aged 62; Margaret died 29 Dec 1869 ; father of Hugh who d. 8 May 1868 aged 40; buried Dunsford graveyard MIs; PR; John McTopy
John GILCHRIST . Ballee married Elizabeth Fee 24 Nov 1901 at Ballycruttle Catholic Church CR; Marian Knox
Mr. Joseph GILCHRIST . Ballee of Ballyhossett; compensated for driange pipe going through his farm 28 Aug 1937 DR*
Mr. William GILCHRIST .Ballee area gave £3 to Ballee Famine Relief Fund in May 1847 FCD p 24
there must be earlier records, to keep it simple I start with Gilchrists elsewhere because I hav’nt yet discovered the Co Down surviving records of the same period.. it’s the Ulster Hearth Money Rolls and earlier muster rolls see
Antrim-Cary-Ballintoy-Ballintoy -Ballagnestred-Wm-Gilcreest-Gilchrist
Antrim-Cary-Ballintoy-Magherahar-Mahereihere-Shane-McChrist-Gilchrist
Antrim-Cary-Culfeightrin-Glenskesk Valley-Glensheske-Brian -McGilcreest-Gilchrist
Antrim-Dunluce Lower-Dunluce-Craigaboney-Cragbony-Wm -Killicrist-Gilchrist
Antrim-Dunluce Upper-Kilraghts-Drumbest-1 Qr Drimnebest-Gillernew-McIlchreest-Gilchrist
Antrim-Dunluce Lower-Billy-Urbal-Ulbillriagh Qr-Edmond-McIlchreest-Gilchrist
Antrim-Dunluce Lower-Billy-Urbal-Ulbillriagh Qr-Gill-McIlchreest-Gilchrist
Antrim-Dunluce Lower-Billy-Ballynagor-Ballynegorr-Teige-McIlchreest-Gilchrist
Antrim-Dunluce Lower-Billy-Carnbore-Carnboare-Ruar-McIlchreest-Gilchrist
Antrim-Antrim Upper-Antrim-Farranshane-fferanshane-James-Kilcreest-Gilchrist
Antrim-Antrim Upper-Antrim-Ballycraigy-Ballycregy-John-Gilcreest-Gilchrist
Antrim-Antrim Upper-Antrim-Ballycraigy-Ballycregy-John roe-Gilcreest-Gilchrist
Antrim-Antrim Upper-Donegore-Donegore-Dinigor-John-Kilchrist-Gilchrist
Antrim-Antrim Upper-Doagh Grange-Ballyclare-Ballyclare-John-Kilchreest-Gilchrist
Antrim-Massereene Upper-Camlin-Ballyvollen-Ballyvolane-Thomas-Kilchreest-Gilchrist
Tyrone-Dungannon Middle-Donaghenry-Killymurphy-Kilimurfie-Humphrey-Killcrist-Gilchrist
then more recent accessible Co Down recordsl records
1796 The Flax growers of ireland see
http://www.failteromhat.com/flax/down.phpGilcriest Nugem Ardglass Down
Gilcriest Thomas Ardglass Down
Gilcriest William Ardglass Down
Gillcriest James Dunsfort Down
Gillcriest Peter Dunsfort Down
Gillcriest William Dunsfort Down
1823-1837 Tithe Applotment Books which are so limited so selective so simple , yet still useful see the the irish genleaogy Hubas indexs , the originals are in PRONI BELFAST
Gilchriest, Hugh-Townland: Irish Ardtole Year: 1833-Ardglass-Down
Gilchriest, Thos.-Townland: Irish Ardtole Year: 1833-Ardglass-Down
Gilchriest, Wm.-Townland: Irish Ardtole Year: 1833-Ardglass-Down
Gilchrist, Mary-Townland: Ballee Year: 1834-Ballee-Down
Gilchrist, Chas.-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Eugene-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Hugh-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Jas.-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Peter-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Pierce-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Thos., Jr.-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Thos., Sr.-Townland: Ballydocks Upper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Jas.-Townland: Ballydocks Uppper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Pierce-Townland: Ballydocks Uppper and Lower Year: 1835-Dunsfort-Down
Gilchrist, Hugh-Townland: Sheeplandmore and Newtown Year: 1835-Dunsfort-Down
next I would study GRIFFITHS VALUATION the quick index but be careful the spelling you search a thttp://www.failteromhat.com. and more detail sometimes giving map references see
http://www.askaboutireland.ie/griffith-valuation/more individual history will appear in that
https://www.ancestryireland.com subscription website
Irish Birth/Baptism Records – Co. Antrim & Co. Down, c. 1660-1930--137 results
Irish Marriage Records – Co. Antrim & Co. Down, c.1660-1930--227 results
Irish Death/Burial Records – Co. Antrim & Co. Down, c. 1660-1998--25 results
Northern Irish Gravestone Inscriptions--5 results
and familysearch.org
Have fun with your family history , it looks interesting
Good luck