Thanks Pen. Re. the Primitive Methodist Church, the church in post #54 was preceded by an iron church/tin chapel. Some newspaper extracts about this and its successor are below.
The Reverend Harvey Roe, (as named on the postcard in post #38), was obviously a very important member of the church and it was he who established the Birmingham Forward Movement Mission.
With regards to the buildings, the iron church on Newman Road seems to have had a site in front of it onto High Street on which the later church was to be built. From early on, therefore, there must have been a bigger plan with the iron church/tin chapel acting as a temporary church.
I wondered if the iron church/tin chapel later became the schoolroom(s) once the Gothic-style church had been built.
Source: British Newspaper Archive