William White, b 1808 was the son of William Pitt White and his wife Edith Graves. William (b 1808) married Prudence Wood (b 1812 Plymouth). I believe William was a sea captain who plied between Plymouth and St Peter Port. As your original message was posted a couple of years ago, have you yet discovered whether George (b1801) was the son of William? If so, could this have been William Pitt, making George (1801) and William (1808) brothers?