Sandy Petersen — Colleagues
John Carmack
1970
· Age 55
Alive
John Romero
1967
· Age 58
Alive
Reid Hoffman
1967
· Age 58
Alive
A
Adrian Carmack
1969
· Age 56
Alive
Tom Hall
1964
· Age 61
Alive
Greg Stafford
1948
– 2018
· Age 70
Deceased
Kevin Cloud
1965
· Age 61
Alive
Michael Abrash
1957
· Age 69
Alive
K
Katherine Anna Kang
1970
· Age 55
Alive