you probably know these sources for Lamont in ballintoy civil parish but just in case
1824 Lamont, John Townland: Templastragh Year: 1824 this townland includes Portbradden to the east ,then extends westwards to Dunseverick harbour. Whitepark road A2 runs through south end of townland,
from
http://www.irishgenealogyhub.com/antrim/tithe-applotments/ballintoy-parish.phpthe originals are in PRONI Belfast and sometimes have maps as well as land description
1861
http://www.askaboutireland.ie/griffith-valuation/index.xml?action=doNameSearch&Submit.x=40&Submit.y=13&Submit=Submit&familyname=lamont&firstname=First+Name&baronyname=&countyname=ANTRIM&unionname=&parishname=BALLINTOYLAMONT ADAM ANTRIM BALLINTOY BROUGHGAMMON map ref 9
LAMONT ADAM ANTRIM BALLINTOY BROUGHGAMMON map ref 10
BROUGHGAMMON townland is south of Ballintoy village
LAMONT JOHN ANTRIM BALLINTOY BALLYNASTRAID map ref 4
LAMONT JOHN ANTRIM BALLINTOY BALLYNASTRAID map ref 4
Ballynastraid townland running southwards starts on the coast just underneath Portbradden
Whitepark road A2 runs through north end of townland . I noted its in Croagh DED for later Lamont records eg 1901/1911 census
my reason for giving map references to griffiths is the extra value obtained by looking this up in the townland of the map [given as the last heading for each entry on
http://www.askaboutireland.ie/griffith-valuation/ Lamonts in Co antrim in
www.ancestryireland.com GenesReunited has before 1829 the last name on each entry is the treeholder so you maybe one of them
John Lamont 1828 ... Avril
John Lamont 1819 "The Eden " Ballymon... Catherine
John Lamont 1816 Ireland ... Stephen
John Lamont 1816 Ireland ... Graham
John Lamont Or Lamond 1816 Ireland ... William
John Lamont 1810 unkwn/ Ireland ... Sarah
John Lamont 1790 Ireland? ... Graham
John Lamont 1760 Ireland ... Stephen
John LaMont 1753 Londondery, Antrim, ... Anthony
John Lamont 1750 Ireland ... Lesley
wikitree
John Lamont abt 1770 Ireland - bef 1851 managed by Jacqueline Baxter
Daniel Lamont abt 1817 Antrim, Ireland - 02 Dec 1874 managed by Stephen Somerville last edited 14 Sep 2016
there are one or two earlier located as Coleraine which could be the nearest big town
wishing you good luck in your quest