The Parish of Shankill and the Parish of Seagoe occupy a considerable portion of the southern shore of Lough Neagh.  Until the formation of the modern Parish of Moyraverty, Shankill and Seagoe were the only parishes of the Dromore Diocese located in County Armagh.  Until c.1750, Seagoe was considered the more important of the two under Catholic aegis.

The saying, something old, something borrowed, something new, can in many ways be applied to the new Lurgan parish implemented by the Most Rev Dr Gerard Brooks, for the development and rearrangement of the Diocese of Dromore to meet the spiritual challenges for the "cure of the souls" in the third Christian millennium.