You question really does make no sense. What do you really mean?
Do you mean to ask: "Who was the author of Punnett squares"?
The Punnett square is a diagram that is used to predict the outcome of a particular cross or breeding experiment. It is named after Reginald C. Punnett, who devised the approach, and is used by biologists to determine the probability of an offspring having a particular genotype.