I'm quite a bit late in posting this, but OCR 1815 was through the Maritimes a while ago. It spent some time in Sydney, Nova Scotia at the SCR shops, having arrived there back on January 25. 1815 left Sydney on February 21 behind RailLink GP9 4004 (report by Mike Whitty). It was spotted in Truro by Andrew Blackburn in the evening of February 23, and left Moncton on February 25 on CN 123 (thanks to Phil Ross).
There's a nice roster shot of OCR 1815 on Railpictures.net.