Hi Kathy, I've pretty well finished my genealogical search for Pearl DeVere despite her severl name changes. Your query has almost all the clues except the one that started my search--the full name of her married sister. I have to admit, that the jump from Indiana to Colorado, was an act of faith, but it appears to all fall into place using the census, old newspaper articles, CO marriage records, and other authors' stories. And under Family Historys (here on Ancestry.com), that one has a serious mistake!
FYI, I'm doing this research for The Old Homestead Museum in Cripple Creek--Pearl's "house". Pearl has become an icon in Cripple Creek, and we will never know why this lady choose the profession she did. More info??