These are the drivers killed during my time watching the sport:
John Taylor (UK)[C]
August 7, 1966
1966 German Grand Prix
Nürburgring
Brabham
Race
[19]
Lorenzo Bandini (ITA)[D]
May 7, 1967
1967 Monaco Grand Prix
Circuit de Monaco
Ferrari
Race
[20]
Bob Anderson (UK)
August 14, 1967
Test
Silverstone
Brabham
Test
[21]
Jo Schlesser (FRA)
July 7, 1968
1968 French Grand Prix
Rouen-Les-Essarts
Honda
Race
[22]
Gerhard Mitter (GER)
August 2, 1969
1969 German Grand Prix
Nürburgring
BMW
Practice
[10]
Martin Brain (UK)
May 25, 1970
Nottingham Sports Car Club meeting
Silverstone
Cooper
Race
[23][24]
Piers Courage (UK)
June 7, 1970
1970 Dutch Grand Prix
Circuit Park Zandvoort
De Tomaso
Race
[25]
Jochen Rindt (AUT)
September 5, 1970
1970 Italian Grand Prix
Autodromo Nazionale Monza
Lotus
Qualifying
[8]
Jo Siffert (SUI)
October 24, 1971
1971 World Championship Victory Race
Brands Hatch
BRM
Race
[26]
Roger Williamson (UK)
July 29, 1973
1973 Dutch Grand Prix
Circuit Park Zandvoort
March
Race
[10]
François Cevert (FRA)
October 6, 1973
1973 United States Grand Prix
Watkins Glen International
Tyrrell
Qualifying
[27]
Peter Revson (USA)
March 30, 1974
1974 South African Grand Prix
Kyalami
Shadow
Pre-race test
[28]
Helmuth Koinigg (AUT)
October 6, 1974
1974 United States Grand Prix
Watkins Glen International
Surtees
Race
[29]
Mark Donohue (USA)
August 19, 1975
1975 Austrian Grand Prix
Österreichring
Penske
Practice
[10]
Tom Pryce (UK)[E]
March 5, 1977
1977 South African Grand Prix
Kyalami
Shadow
Race
[30]
Brian McGuire (AUS)
August 29, 1977
1977 Shellsport Championship Round 11
Brands Hatch
Williams
Practice
[31]
Ronnie Peterson (SWE)[F]
September 10, 1978
1978 Italian Grand Prix
Autodromo Nazionale Monza
Lotus
Race
[32]
Patrick Depailler (FRA)
August 1, 1980
Test
Hockenheimring
Alfa Romeo
Test
[33]
Gilles Villeneuve (CAN)
May 8, 1982
1982 Belgian Grand Prix
Circuit Zolder
Ferrari
Qualifying
[34]
Riccardo Paletti (ITA)
June 13, 1982
1982 Canadian Grand Prix
Circuit Gilles Villeneuve
Osella
Race
[10]
Elio de Angelis (ITA)
May 15, 1986
Test
Circuit Paul Ricard
Brabham
Test
[35]
Roland Ratzenberger (AUT)
April 30, 1994
1994 San Marino Grand Prix
Autodromo Enzo e Dino Ferrari
Simtek
Qualifying
[36]
Ayrton Senna (BRA)
May 1, 1994
1994 San Marino Grand Prix
Autodromo Enzo e Dino Ferrari
Williams
Race
I stopped watching for a few seasons after Jochen Rindt perished, same when Ayrton Senna died.
Today the sport is safer and I don't miss the spectacle of the '65>'94 years