Masongill is a small community on the edge of the Craven district of North Yorkshire, England.

The village, in the Yorkshire Dales, lies near the border of Lancashire to the west, and the nearby hamlet of Ireby.

[1] Doyle would have arrived by train at Ingleton (Midland) railway station and continued his journey to Masongill by cart.

Waller was Squire of Masongill from 1877 and, from 1879, he was a lecturer in Pathology at the University of Edinburgh, having already attained his MD there.

Doyle and Waller were big men with strong characters and their relationship deteriorated to such an extent that they came to blows.