David McLellan 现在还在世吗？
在哪个国家？
David McLellan 在哪个大学哪个系部做教师？

当然在, 下面是从英国百科全书来的:

David McLellan (born 1940) is a British scholar of Marx and Marxism. He was educated at Merchant Taylors' School and St. John's College, Oxford University.

McLellan is currently visiting Professor of Political Theory at Goldsmiths' College, University of London. He was previously Professor of Political Theory at the Department of Politics and International Relations at the University of Kent.

He has been Visiting Professor at the State University of New York, Guest Fellow in Politics at the Indian Institute of Advanced Study, Simla, and has lectured widely in North America and Europe.