Send a message to the person who requested a photo of the grave monument of Elizabeth Blackah with the following comment:
The Charles and Louisa Ryder involved may be my great grandparents. I know they are buried in Lawnswood, but they aren't otherwise recorded. Charles Ryder owned a chunk of Tetleys brewery and should have had a memorial of his own. The Blackah family don't appear in our family records, so I'm a bit confused about that, though I know more than one Charles Ryder was buried in Lawnswood. Thanks for the time and effort you put into this.