William Pounds, a former dean of the MIT Sloan School of Management who was known for his ubiquitous presence around campus and mentorship of junior faculty members, and for advising the broader Institute through the turbulent years of the Vietnam War, died Aug. 23. He was 95. Pounds joined MIT Sloan in 1961 as an assistant professor and became dean in 1966. After stepping down from that role in 1980, Pounds was senior advisor to the Rockefeller family from 1981 to 1991. He served on boards for a wide range…