Canadian geologist
Roger G. 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.
References.
 ;templatestyles src="Reflist/styles.css" / ;