The parish of Rhosllannerchrugog was created on 3 September 1844, from the township of Morton Above, and part of the township of Dinhinlle Ucha, which until then had been in the parish of Ruabon.
St. John's church was consecrated on 4 October 1853.
The church closed in 2004 and services were transferred to St. David's, in the centre of the village, and St. John's in Johnstown.
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For family history information about the church and parish, visit the GenUKI Rhosllannerchrugog page.