[1] He took over the captaincy of the West Indies team from his brother Jackie Grant.

Rolph had not always been picked for the Cambridge University team, but he was a gifted sportsman, being a national amateur footballer and being heavyweight boxing champion for his country.

[5] Discussing the West Indian captaincy in his history of West Indian cricket, Michael Manley described Grant as "a man of great decency and intelligence", but in his qualifications for the captaincy he was "far more importantly the son of a wealthy and powerful Trinidadian family ...

It was the families who were accustomed to ruling who were assumed to produce the sons who were capable of leading.

He was also a prominent voluntary social worker, and was awarded the OBE for this work in the 1961 New Year Honours.