Mark died Jan. 1, 2016, at his home in Albuquerque, N.M. He pursued his passion for petroleum geology throughout his life. His professional stature was greatly enhanced by wildcat oil and gas discoveries, including new fields in Mississippi, Montana, and New Mexico.

He attended St. Louis (Mo.) Country Day School, and spent a year as a seaman first class in the Navy. At Princeton he was a member of Elm and Triangle Club, and graduated with honors in geology.

His career started with Shell Oil. After 18 years with Shell and 15 major moves, he founded Robinson Resource Development Co. in 1969, an independent oil-exploration company in Roswell, N.M., where he lived for about 50 years before moving to Albuquerque in 2009.

Mark enjoyed traveling and was an avid reader of history. At our 50th reunion, he reported that his principal hobby was maintaining a 40-acre hunter/jumper horse farm, which provided his sons with show and polo mounts.

He is survived by his wife, Jean, whom he married in 1954; children Frances, Mark, and Paul; and grandchildren.

Undergraduate Class of 1950