Possibly Rose McMonagle, Myra's mother, but not sure about that
Charles Albert Stratton, Myra's father
Myra's father Charles, with his father Henry Hyde and his siblings Jim, Hannah, John, and Walter
My guess is that Myra is the little girl hiding her face in her grandfather's shoulder, and that her brother Chuck and sister Myrtle Marie are beside her. And that may be Myra's mother, Rose, directly behind her.
Myra as a child
Front Row: Myra Stratton (flowergirl), 1st cousin Selena Thompson (bride), other young cousins Nell Thompson and Blossom Thompson. Top row: 1st cousin Eddie LaBonde, Irma Thompson, groom Harry Hansen, bridesmaid 1st cousin Rose LaBond and her future husband, Clarence Rasmussen.
Myra (Sister Charlesita) in Oak Park, Illinois, undated
Sister Charlesita at St. Ignatius High School, Chicago, 1968
Myra's brother Chuck Stratton with wife Mary, Indiana, June 6, 1976
Roy, Rory, Myrtle Marie (Myra's sister), Kitty, and Chuck Chastain
Myra's sister, Myrtle Marie, with her husband Roy Chastain
Roy Chastain (Myra's nephew) and his wife Lucy
Roylene Marie "Kitty" Chastain, Myra's niece
Myra, Indiana, 1985
Myra with unknown man, 1988
Myra with her cousin Eddie LaBond, Springfield, MO, 1988