I believe Pearl may actually be Pearle. I have seen it written both ways.
I believe Wavie's name was Wavie. I did a search of "Hattie Mehuron Aldrich" and found her listed as "Wavie Lilla May Aldrich." Daughter of Mason F. Aldrich and Hattie Mehuron. This would make her the half sister of Pearl/Pearle.
This info was from doing a bing search of "Hattie Mehuron Aldrich"
Robert