This is Wilbur Olin Atwater. He was a pioneer in human nutrition, back in the day. He was also one of the major causes of the Great Malnutrition Scare of 1907-21.
You see, Atwater was one of the first people to try to figure out how much of what nutrients people need to function. And like many who are among the first to quantify something… he got a lot of stuff wrong. The amount of protein he decided the average person needs is today known to lead to kidney failure, just as a f”rinstance.
And between his miscalculations, misinterpretation of both his data and poorly gathered information, racially skewed height and weight charts, along with a great big ol’ dollop of cultural aesthetic preferences and prejudice over evidence, the Great Malnutrition Scare of 1907 – 21 began.