I got this information from a relative.

Mary was born to John Calvin Akin and Dorcas Bradley Akin. John is supposely buried at Rosita cemetery but he is not listed what I have seen unless he's buried where there's only a rock. There's two rocks by Bethune Dunkin Payne but I have heard it's the Clift side.

Some of her other siblings were:

Sarah Belle Akin Payne Rants of Rosita, Colorado;
Emma NIKOLL;
George Akin;
Malinda?
Charles Akin of Wetmore, Colorado

She married Frances L. "Frank" Edmiston.

Got the children information from Claudia Cummings:

Children: William, Helen, James, and Frank.
William L. Edmiston
born: 1882 Colorado
died: ?? listed on 1887 Washington Census, not on 1900 Lewiston ID census
Helen Dorcas
born: February 1885, Washington Territory
died: 3/6/1942, Seattle WA
buried: ??
married: Lewiston ID 8/16/1908
James Rutherford Cumming
Their children:
James Frances Cumming
born:1910, Lewiston ID
never married
died: 9/2/1934, Seattle WA
William Lee Cumming
born: 3/18/1917, Kalispell, MT
children: Kevin, Philip, Claudia, Karen, Hugh
Sarah Elizabeth Cumming
born: 9/10/22, Portland OR
never married
died: 6/6/1988, Minneapolis MN
James Ewen
born: 8/13/1887, Washington Territory
died: September 1973, Oregon
married: Florence Edmiston
children: James, Helen, Mary
Frank D.
born: 1895 Lewiston ID
died: ?? last listed on 1915 Lewiston, ID census

If I have any of this information wrong, please let me know!