The original coal line sidings were a bit of an oddity. They were "foreign" railway lines. They were "owned" by the LNWR (London and North Western Railway). As "foreign" lines payment was required to the LB&SCR (London, Brighton and South Coast Railway) for the LNWR to run over the LB&SCR metals. Theses charges were calculated by the RCH (Railway Clearing House). So for history, a quick consultation with the NRM (National Railway Museum, about LNWR, LB&SCR, and RCH records relating to Peckham might prove productive. The RCH map of the LNWR sidings is readily available on-line. John K