Original sentence: It was not until he met Margaret (Madge) Rose Watt (Mrs Alfred Watt) that he heard about the Women's Institute movement that had started in 1897 at Stoney Creek, Ontario, Canada and grown into the Federated Women's Institutes of Canada, that he found what he wanted
Edited sentence: It was not until he met Margaret (Madge) Rose Watt (Mrs Alfred Watt) that he heard about the Women's Institute movement that had started in 1897 at Stoney Creek, Ontario (see Erland Lee Museum) , Canada and grown into the Federated Women's Institutes of Canada, that he found what he wanted