Hugh Seymour
Hugh was born in 1759.  He died at the age of 42 in 1801.

 Anne Waldegrave
Anne was born in 1759.  She died at the age of 42 on June 12th, 1801.

 Horace Seymour
Horace was born in 1791.  He died at the age of 65 in 1856.