I have not seen any of the people you mention in your message regarding the surname of Briggs. All I have on my family tree is one Margaret Briggs born 1879 Burnley, Lancashire, and she married a Thomas Bryan in Burnley.
Have you had a look on the genuki site for Lancashire to see if anyone is searching the names you are interested in. Also genesreunited is a fantastic site like this one. Good luck, sorry I could not help. Brenda Merseyside, England