This is quite a common name and unless you are really certain of the birth date, then you could easily follow the wrong lead.
Do you have his marriage certificate or his death certificate? Either of those would give you both his parents' names, provided either event took place in Scotland. They can be viewed online on pay per view basis at:
http://www.scotlandspeople.gov.ukIt doesn't have to cost a fortune if you follow the advice on searching.
There are two births registered in New Monkland for a James McLauchlan.
10 Jun 1859, parents John McLauchlan and Bridget McDonagh
1 Jul 1859, parents James McLauchlan and Margaret Gowdie Young.
Nell