http://www.accringtonweb.com/forum/f...ton-59510.html
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These two references answer some of the questions in my last post. Posts 11 and 17 in the Park Road thread suggest that the low building was as I thought a gate house, one of two to the Steiner mansion called Hyndburn house. Post 17 has a lovely old map with a Lancs county council stamp on it but I can't find it on the LCC website.
The school is on the 1909 map and I think it was built around then. Hyndburn house must have been gone by then because the area is built up with streets. The photo of the church that AccyGirl found is also on the lancashire lantern website with a date of approx 1920s