In Headley's day Test matches involving West Indies were infrequent so their cricketers were often judged by performances in the first-class game around the world. To a certain extent this continued until county cricket welcomed significant numbers of overseas players in the late 1960s, and more Tests were staged.
First-class career averages by host country of some notable West Indian batsmen making their debut before 1960. Roy Marshall and Sydney Smith spent most of their time in county cricket.
In West Indies: Headley 86, Sobers 70, Walcott 58, Weekes 58, Worrell 57, Marshall 51, Kanhai 50, George Challenor 47, Smith 23.
In England: Headley 68, Weekes 50, Walcott 49, Sobers 48, Kanhai 47, Worrell 47, Marshall 35, Challenor 34, Smith 31.
In Australia: Kanhai 57, Sobers 56, Headley 44, Worrell 42, Walcott 41, Marshall 26, Weekes 26.
In New Zealand: Walcott 86, Worrell 84, Weekes 71, Marshall 40. Smith 39, Sobers 24, Kanhai 4 (one innings).
In India, Pakistan and Ceylon: Walcott 75, Sobers 70, Weekes 64, Worrell 64, Kanhai 47, Marshall 36, Headley 22 (four innings).
In South Africa and Rhodesia: Kanhai 87, Marshall 25, Weekes 22.
Overall: Headley 69, Walcott 56, Weekes 55, Sobers 54, Worrell 54, Kanhai 49, Challenor 38, Marshall 35, Smith 31.
Headley has the highest first-class career average of any batsman in the West Indies, the second highest in England after Bradman, and the fourth highest overall.