Hundreds of people are expected to participate in the IG Wealth Management Walk For Alzheimer's Sunday, May 31.Alzheimer's Society Sarnia-Lambton Fund Development and Communications Manager Marie Marcy-Smids said it will be held at Sarnia's Suncor Agora in Centennial Park."Check in starts at 8:30 a.m.," she said. "We are looking for 540 walkers this year, which is a little bit of a jump from last year and our campaign goal is $130,000."Marcy-Smi…