T. E. Harris was a pioneer par excellence in many fields of probability
theory. In this paper, we give a brief survey of the many fundamental
contributions of Harris to the theory of branching processes, starting with his
doctoral work at Princeton in the late forties and culminating in his
fundamental book "The Theory of Branching Processes," published in 1963.Comment: Published in at http://dx.doi.org/10.1214/10-AOP599 the Annals of
Probability (http://www.imstat.org/aop/) by the Institute of Mathematical
Statistics (http://www.imstat.org
