Michael Henry has researched plasters and plastered his way across Ontario for the past decade, plastering for Camel's Back Construction and Straworks. His attention to detail and mad-scientist plaster experiments have made him a noted expert in the field and a sought-after workshop leader on plasters at the Endeavour Centre. Michael is co-author of Ontario's Old-Growth Forests, and he lives in Peterborough, Ontario with his wife and two children. He shares his plastering knowledge at thesustainablehome.net.

Tina Therrien started plastering in 1997 as part of Camel's Back Construction, the first straw bale building company in Ontario. One of the founding members of the Ontario Natural Building Coalition, Tina has made numerous contributions in the natural building world and has plastered in France and Haiti. Passionate about food, gardening, and chickens, Tina lives in a modest timber frame home with her spouse, daughter, their flock of chickens, and their slowly expanding gardens. She is co-author of More Straw Bale Building, and she operates Shelter By Hand, a timber framing company, with her spouse. She lives in Low, Quebec.