"Prairie Rose" older Alberta song???

Hi, I am desperately searching for the lyrics to an older song. It was the Alberta [Canada] provincial anthem or theme song called "Prairie Rose" written by Mary Mercer. She was born in 1906 but I can't find any more information on her. Alberta is celebrating our 100 years in 2005 so it would be great if we could find this older song. Appreciate all your help. Thanks , Dorothy