I recently went to the local archives office for the borough, stupidly took 4 dds with me, so didnt get down to it all. But looked up how the house that was here origianlly was bombed during the war. The archives office had a terminal with ancestors.com that you could look at for free. Will go back to look at census records.
Cross referenced this with a book that detailed the damage to london during the blitz and looked at our house on the map. Substantial damage that could only be repaired at substantial cost.
Staff were dry helpful, but not that impressed with the kids. It is more like a uni library.it is located with our children's library, so in my mind I expected it to be more flexible for people who may bring kids in.