On 10 December 1941, Goldsmith married Dorothea Rosemary Britton in a ceremony at Tuckingmill, Cornwall.
In 1831 William Bickford, an English merchant and a Methodist, originally from Ashburton, Devon, moved to the heart of the Cornish mining district near Camborne; where at Tuckingmill he developed the first practical and reliable means for igniting gunpowder when mining, the "Safety Fuze".
Tuckingmill, Camborne, Cornwall, a parish near Camborne in the English county of Cornwall
His grandfather William Bickford had developed a method of making mining fuses using rope which was safer than previous methods and with Smith's father had established a factory at Tuckingmill, Cornwall.