Old Photos - the other side !

After yesterday’s visit to the Photograph gallery at the V&A thought I d have a look at some of my old ones ! The reverse sides seemed interesting ?
They are from the 1890s I think - the top two are family ones from Wales , the bottom right is from family who must have emigrated to work in the mines in Pennsylvania and the bottom left is a photo of Henry Irving in Hamlet - probably his Lyceum days.