Try here for some really old maps and they are relatively cheap.
You might want these
6.03 Springburn 1894
6.07 St Rollox 1894
6.08 Glasgow NE (Provanmill, Blackhill & Riddrie) 1893
6.10 Central Glasgow 1893
6.11 Glasgow (High St) 1909
6.12 Glasgow (East End) 1893
I find it very sad that the M8 was the start of the demise of Townhead. On my last visit to Glasgow I was saddened to see that Townhead just doesn't exist anymore apart from the Royal
On that note try and get "Townheads a Goner" can't remember the author and also "The Good and Bad" book about the Garngad by Pat Thompson, for an idea of the general area before M8 swathed through it.