SMILE Mass was created in 2009 by Lotte Diomede and Susan Brown. The two women had worked closely together on the SMILE Sudbury Playground Project. Lotte was the Chairperson of SMILE Sudbury and Susan was on the fundraising committee. They were so happy with the results of the SMILE Sudbury Playgroup Project that they decided to continue to work together to continue improving the lives of disabled persons and the people around them.