I have been researching a Thomas and Agnes Gilbert family of Stenalees St Austell. They had a large family of twelve children of which nine I have traced through to their deaths. There are three I am
having problems tracing, what happened to them.

They are ;

Priscilla born 06/02/1853, baptised 12/04/1853 at Stenalees
Tom born 26/11/1855, baptised 30/12/1855 at Stenalees
Susan Ann born June quarter 1869, baptised 29/03/1872 at Treverbyn, St Austell

Priscilla is in the 1861 Census with her family.
Tom is in the 1861 and 1871 Census with his family.
Susan Ann is in the 1871 and 1881 Census with her family and in the 1891 cenus with her mother at Wiiliam P Vercoe and Mary Vercoe ( Susan Ann's sister) at Carloggas, Treverbyn, St Austell.

There appears to be no record of the above three after these dates. I have searched marrriage and death records and to date have not found nothing.

Any help please with my brick wall.