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

Myra, undated

Myra, undated

Myra with volunteer, December 2011