Place U1: John Markson house
1851Site of the poisoning of the Markson family. No address or relationship to a named street is supplied; no pin is assigned.
About John Markson house
The John Markson house is the setting of a family poisoning in 1851, one of the early violent episodes preserved in Derry’s historical record. The event identifies a household and a year but supplies no neighbourhood context for the dwelling. It remains part of the atlas as an unplaced place so that the town’s history is not reduced only to sites with recoverable coordinates. No building symbol appears on the map, and no modern street is assigned to it.
Why this place has no pin
No location. The book doesn’t say where it is; no point on the map.
This place is marked U because no address, street, route, district or relationship to another mapped landmark is available. The family name and event confirm that the house belongs to Derry’s history, but they cannot select one part of town over another. Assigning even a broad candidate point would add unsupported geography. The record therefore stays searchable and documented off map until a usable spatial anchor is found.
