The McLaughlin Motor Car Company Limited was formed in 1907 when McLaughlin began manufacturing automobiles under the leadership of Robert's son, Colonel Sam McLaughlin. Under a fifteen year contract the Canadian automobiles received drive trains bought in from the Buick plant in Flint, Michigan. These cars were sold with the brand-name McLaughlin though the name McLaughlin-Buick also appeared on some vehicles (click 'mclaughlin' in th ekeywords below to see a couple of those). They were swallowed up into General Motors eventually.
This one must be pre-1910, but the registration refers to another car at the time of writing this so I can't be sure.
2017 Harewood House Motor Show