Datapoint English dialects in the Southwest of England/Distinction between emphatic vs. non-emphatic forms of pronouns

Variety: English dialects in the Southwest of England
Feature: Distinction between emphatic vs. non-emphatic forms of pronouns
Value: C - feature exists, but is extremely rare
Informants: Susanne Wagner

Examples

Example 1166:
if I didn't know they, they knowed I

Source: Kortmann, Bernd 2000-2005: Wil_009