early life and career theodore christopher marceau, a pioneering american photographer, was born on may 28, 1859. his photographic career, which began at the age of 22, was marked by serving as the official photographer for the united states government's astronomical expedition to south america to observe the transit of venus. photographic contributions marceau's most notable contribution to the world of photography was the establishment of a national chain of photographic studios in the united states during the 1880s. he founded marceau studios in manhattan, philadelphia, and boston, becomin…