Didn't mean that to come across as a snap but you said you wanted a definitive list, which I don't think you'll find.
The easiest way is too go through player by player, I'd only concentrate on players who have played test cricket though, as the Zimbabwe first class system is a joke and will be very incomplete.
It's not that bad as there are only 70 odd test players from Zimbabwe of which you have information for about 20/25 so it probably leaves you around 10/15 to search through. The rest will be from before the start of the exodus which would have been the world cup in South Africa and Zimbabwe.