GROTON, Mass. – Dr. Dee Caldwell, son of Erskine Caldwell and Helen Lannigan, died Dec. 11, 2006, at home of kidney failure. Born March 26, 1927, in Virginia, he grew up a die-hard Mainer in Mount Vernon. He attended high school at Kents Hill Academy and then college at Bowdoin, taking time off to serve in the U.S. Marine Corps at the end of World War II. On the Dean’s List in the fall, Dee joined the spring skiing at Mount Washington’s Tuckerman Ravine. He holds a doctorate in geology from Harvard with a doctoral thesis on Mount Katahdin. Professor Emeritus of geology at Boston University, Dee also taught at Wellesley for a combined 50-plus years of dedicated teaching. Countless students, both undergraduate and graduate, took from him a love of and enthusiasm for geology. He led a field camp each summer at the Boom House, a former logging camp near Baxter State Park. He authored numerous scholarly papers as well as the witty Roadside Geology of Maine. During his adult life he lived in Groton, Mass., as well as in Acworth, N.H., and on Lake Chesuncook. He remained an avid skier throughout his life. Dee Caldwell is survived by his wife, Marvin Caldwell; five children, Kiah Caldwell of Burke Hollow, Vt., David Caldwell of Mount Vernon, Adam Caldwell of Oakland, Calif., Leah Galligan of Providence, R.I., and Mena Schmid of Somerville, Mass.; sister, Jan Gooding of Beaufort, N.C.; brothers, Erskine Caldwell Jr. of Covina, Calif., and Jay Caldwell of Tuscon, Ariz.; two former wives, Pat Griscom of Ocean Ridge, Fla., and Nancy Phillips of Warren, R.I.; seven grandchildren and one great-grandchild. A service will be held 3 p.m. Friday, Dec. 15, at Union Congregational Church, Groton, Mass., where a reception will be held after.