You can extract all the Wallace entries for Ballyphillip from Ros Davies co Down website
http://www.rosdavies.com here is one example
John WALLACE Ballyphilip of Portaferry; husband of Lucy; mentioned in Deeds for land in Ballyogigan with Arthur Graham of Ballyheridan Co. Tyrone 19 Dec 1726. Registry of Deeds, Dublin Vol 52 p108
That townland Ballyogigan isn’t listed on
http://www.rosdavies.com/MAPS/CastleboySlanesBallytrustanBallyphilipTlands.htmthe nearest guess is Ballygarvigan Ballyphilip. A townland 4km NE of Portaferry town; 234 acres; click here to see its location on a townland map; means ' townland of O'Garvigan'; The specialists
https://www.logainm.ie/en/65921?s=Ballygarvigan doesn’t comment and
http://www.placenamesni.org/resultdetails.php?entry=17300 lists ""O''Garvigan''s Town""
as a translation and lists many older spellings, such as
Ballegorwocan, Ballygarnecone etcetc
from
http://www.irishgenealogyhub.com/down/tithe-applotment-books/ballyphilip-parish.php Wallace, James Townland: Portaferry Gardens Year: 1827
Portaferry Gardens is the address in about a third of the names listed
The main Wallace family tree appears to be located in Hollymount Estate West of Downpatrick. Take the car ferry from Portaferry to Strangford, drive through Downpatrick to Hollymount National Nature Reserve
Some reference for Wallace family trees exist, in the Blackwood Family History manuscript trees Collection in the LinenHall library, Belfast. but the references don’t list Ballyphilip. Visit if you can give them warning helps, if you cant then I suggest you write to them asking them for help. each volume entry is normally about 6-8 pages each ,could somebody scan the 8 volume references below for Portaferry or Ballyphilip entries and then quote you for copying. The Library may be able to assist those with more extensive research requirements on terms subject to negotiation with the Librarian. Contact the Library for further information on
info@linenhall.com or Telephone 028 9032 1707. Their address is The Linen Hall Library,17 Donegall Square North, Belfast BT15GB, Northern Ireland, see their website for contact details or use Email:info@linenhall.com.
The volume references are
WALLACE Volume 4p124N Hollymount, 19p1N, 21, 27T, 28N, 29, 40N, 54 typed
Hoping this is includes new information for you
good luck, Jim
ps However if the material is really relevant when you get it, I suggest a further donation to this unique library that is always needing extra funds.
My overall advice is many civic bmds etc may be not registered in Portaferry but in Downpatrick, the local district centre si family search.org may be more useful than at first sight
Tara Ros Davies website describes it as Tara / Tarah etc Ballyphilip & Witter civil parishes21: 63/49 a townland near Millin Bay, on the Irish Sea ;4km SE of Portaferry; click here to see its location on a townland map; means ' high hill';ancient ring fort here; in 1659 there were 6 English/Scots & 3 Catholic families here;lowest rent in 1836 was 30 shillings & highest 35 shillings; Tara Bay lies on the south side of Black Nib headland; death of Edward Murphy, solicitor, Portaferry 16 Sep 1854 V17 p 125 & V7 p 125 ,126 OSM; SP; DR; PNNI V2 p 131
Brianog1971 use ros davies website Ballee is south of Downpatrick as I am sure you know so you are close to being arelative