Strain, M. David ~ at his residence in Thorold, surrounded by his loving family, on Monday, April 5, 2010 at the age of 54. Beloved husband of 25 years to Heather (Knight) Strain. Loving father of Katie and Kelsey. Loving grandfather of Rylie. Predeceased by his mother Colleen Strain. Dear brother of John (Cleo) Strain, Ross (Marge) Strain and George Strain and by his stepbrothers Mark Simpson and Garnett Simpson. Loving son-in law of Marianne and the late Ron Knight and brother-in-law of Jacqueline (Mickey), Sandy (Jeff) and Kathryn.