Not many people graduate from Harvard at the age of 20 but Theodore Minot (who, understandably, went by T.M.) Clark did. Clark was born in Boston in 1845 — the same year the New York Herald first mentioned a new game called baseball. He went on to be the editor of American Architect magazine and also was in charge of the Department of Architecture at M.I.T. for a long time.
He wrote several books and served as a director of the Workingman’s Building Association, which helped the poor buy homes so they could have a stake in America. Today, the Workingman’s Building Association is called the Boston Foundation. Nice.