Susan. I have a number of Shermers living in the Gloucester region in the 19th C. Samuel Shermer m ElizabethThey had a son Joseph (b 1814) who married Mary Buckingham. Their son Albert (b 1861) m Agnes Edwards in Gloucester in 1890 and they had several children inc my wifes grandmother Edith Annie Roberta (1895). Their other children were Mary, Hilda, Eleanor (1893)and Mabel
Both Samuel and Joseph spelt their names at times Shurmer.
I hope that this may be of help.Any information you may have will be gratefully received. Richard