Scoring seven off one ball without penalties

According to Test Cricket Lists (The 1998 edition), up to August 1998 only 5 times has 7 or more been scored off the one ball without any penalties or no balls etc. on that delivery.
They are:
8 runs - E.H Hendren; Eng vs Aust; Brisbane; 1928-29; 4 run, 4 boundary overthrows
8 runs - John Wright; N.Z vs Aust; Melbourne; 1980-81; 4 run, 4 boundary overthrows
7 runs - A Sandham; Eng vs W.I; Kingston; 1929-30; 3 run; 4 boundary overthrows
7 runs - Alan Knott; Eng vs W.I; Leeds; 1976; 1 run; 2 overthrows; 4 boundary overthrows
7 runs - Majid Khan; Pak vs Aus; Melbourne; 1981-82; 4 run; 3 overthrows
Which makes todays occurance only the 6th recorded case of 7 runs or more off one delivery.
They are:
8 runs - E.H Hendren; Eng vs Aust; Brisbane; 1928-29; 4 run, 4 boundary overthrows
8 runs - John Wright; N.Z vs Aust; Melbourne; 1980-81; 4 run, 4 boundary overthrows
7 runs - A Sandham; Eng vs W.I; Kingston; 1929-30; 3 run; 4 boundary overthrows
7 runs - Alan Knott; Eng vs W.I; Leeds; 1976; 1 run; 2 overthrows; 4 boundary overthrows
7 runs - Majid Khan; Pak vs Aus; Melbourne; 1981-82; 4 run; 3 overthrows
Which makes todays occurance only the 6th recorded case of 7 runs or more off one delivery.