By gone hours, or, 'Tis sad to think of the joyous days of old. Poetry by Mrs. Norton. Music by Mrs. P. Blackwood.   Creator:   Dufferin, Helen Selina Blackwood. Publisher.Display:   Louisville, Ky: Peters, Webb & Co. Source Institution:   Florida International University By gone hours, or, 'Tis sad to think of the joyous days of old. Poetry by Mrs. Norton. Music by Mrs. P. Blackwood.