Including the singles, I get 75 (+1) confirmed deaths.

Song Of Joy...................(4)..Joy, Hilda, Hattie, Holly
Stagger Lee...................(2)..Barkeep and Billy Dilly
Henry Lee.....................(1)..Henry Lee
Lovely Creature...............(1)..The "lovely creature"
Where The Wild Roses Grow.....(1)..Elisa Day
The Curse Of Millhaven........(23).Twenty children
                                   Blake boy
                                   Handyman Joe
                                   Mrs. Colgate
                              [1]  Biko
The Kindness Of Strangers.....(1)..Mary Bellows
Crow Jane.....................(20).Twenty miners
O'Malley's Bar................(12).Mr. O'Malley
                                   Mrs. O'Malley
                                   Siobhan O'Malley
                                   Caffrey
                                   Mrs. Richard Holmes
                                   Mr. Richard Holmes
                                   Mr. Brookes
                                   Richardson
                                   Jerry Bellows
                                     (any relation to Mary???)
                                   Henry Davenport
                                   Kathleen Carpenter
                                   Vincent West
Ballad of Robert Moore and
     Betty Coltrane...........(4)..Mr Frogeyes
                                   Bald man with wing-nut ears
                                   Sailor
                                   Robert Moore
Willow Garden.................(2)..Rose Connolly
                                   Narrator
King Kong Kitchee... .........(3)..the Suitors
Knoxville Girl................(1)..her

Total 75 + Biko

+ Song of Joy "he's done many many more"
+ Curse of Milhaven "the fire of '91"