Clarke was born in Daytona Beach, Fla., and came to Princeton from Phillips Academy. He majored in chemistry, was a member of Campus Club, and played IAA football.

After graduation, Clarke was drafted and spent his Army stint at Fort Monmouth, N.J., learning and teaching the guidance system of the Nike guided missile. A chemist who specialized in marketing research, Clarke worked for the Atlas Powder Co. — later AstraZeneca Corp. — traveling widely, speaking often at industry gatherings, and serving as president of the Chemical Marketing Research Association.

In retirement Clarke worked on a number of Earthwatch archaeological projects in places such as Moscow, Pompeii, and Mammoth Cave in Kentucky. He volunteered at Wilmington’s Faith Center, which provides counseling and financial assistance to low-income families and individuals facing immediate financial crises. He was also treasurer and a board member of the English Speaking Union.

Clarke died May 23, 2018, in Wilmington, Del., after a brief illness.

Undergraduate Class of 1953