Walker, FRSC, MMR is a geologist and an award-winning Emeritus Professor at McMaster University.
Walker obtained his D.Phil.
from Oxford University.
He was a Postdoctoral Fellow at Johns Hopkins University.
For 32 years, he taught at McMaster University.
In 1998, Walker left McMaster to be a consultant in Calgary.In 2013, Walker achieved the title of Master Model Railroader from the National Model Railroad Association.