He and his wife Mary had two children called Alexander and Elizabeth Ann.

Traill's Temperance Coffee House was a temperance coffee house located on the ground floor of 6 Greyfriars Place.

In 1975, 4, 5 and 6 Greyfriars Place were B listed by Historic Environment Scotland.

In 1895, Oliver Morris painted a picture of Traill which has been on display at the City Art Centre since 1962.

[2] Traill died in 1897 and is buried at Newington Cemetery in Edinburgh.