This is likely because Nellie had, by this time, arrived in Vancouver and married Jack, and their first child, Gladys, my grandmother, was going to be born in July of 1914. They were busy. Maybe had less time for writing. Plus, they had been gone from Scotland for a while now, and I suspect that correspondence from home, plentiful at first, would decrease as time went on.
So this postcard is from Nairn - a photograph of the River Nairn:
The back of the postcard reads: "A P.C. to remind you of a local beauty spot. Think you'll like it. All the local ___ (?) going strong. Etties joined the Sallies!!!"
Regarding the last line "Etties joined the Sallies": several people have pointed out that the Salvation Army is/was known as "The Sallies" - so likely a friend named Ettie had joined the Salvation Army. By the end of the year, she was probably very busy with war aid.
Now here is the interesting thing about the postcard: it is the first of several that were sent to and from northwestern British Columbia - - Atlin and Discovery, to be specific.
Dated April 27, 1914, this card is sent a few months before the start of WWI - the end of both an immigration and economic boom. Atlin was the site of a gold rush starting around the same time as the Klondike. The Klondike took place 1896-1899. In 1898, word came from the Atlin area about gold being found, and many of the men headed to the Klondike were detoured to the area of Atlin Lake. By 1914, though, there was still a lot of activity in gold mining in the area.
It would appear that Mr. W. Grant was located in Discovery. Discovery, also known as Pine City, was located about 10 miles east of Atlin.