This is not my family, but I can say there were more children than Daisy:
pilotfamilysearch.org has a few marriages:
David W. Turney (b ca 1905 Miles City MT, son of George Turney and Mabel Adams) married 8 Nov 1928 Cascade MT to Marie Rose Kenny (b ca 1906 Butte MT dau of Wm J Kenny and Mary Carney)
Frank Janutis (b ca 1894 Russia, son of Frank and Annie Janutis) married 27 July 1923 Miles City, Custer Co MT to Marion Myrtle Turney (b ca 1904 Miles City MT, dau of George Turney and Mable Adams.
Also shows Daisy's marriage but I figure you already have that.
1910 census: Miles Ward 1, Custer Co MT:
George C. Turney, 47, married 11 years, OH, OH, PA, house painter
Mrs. Geo, wife, 29, married 11 years, 4 children 4 living, MT, NH, KY
Daisy, 10, MT, OH, MT
George H., son, 8, MT, OH, MT
Marion, dau, 6, MT, OH, MT
William, son, 5, MT, OH, MT
I do not see George and family in the 1900, 1920 nor 1930 census.
But, I did see this, which merges perfectly with Mabel/Mable's date of birth as well as her parents state of birth:
1900 census: Miles City, Custer Co MT:
82-83: Annie Adams, head, born Nov 1864, 35, widowed, married 20 years, 8 children, 8 living, KY, KY, TN, sewing
Mabel, dau, born Nov 1880, 19, married, less than 1 year, ND, NH, KY
Norval, son, born Sept 1882, 18, MT, NH KY, laborer
Leah, dau, born Apr 1884, 16, MT, NH, KY, waiter, tables
Edi, dau, born July 1886, 13, MT, NH, KY
Alta, dau, born Aug 1889, 10, MT, NH, KY
Stella, dau, born Mar 1893, 7, MT, NH, KY
Harvy, son, born Apr 1894, 6, MT, NH, KY
Chester, son, born Feb 1898, 2, MT, NH, KY.
more marriages from pilotfamilysearch.org in Montana:
Jack Harvey Adams (born Miles City to Charles H. Adams and Annie E. Brown), married to Jeanette Bush, 30 Apr 1922, Miles City, Custer Co MT.
Leah Ellen Adams (born Newlon, Dawson Co MT to Charles H. Adams and Annie E. Brown), married to Bud Avery, 11 Feb 1902, Miles City MT
Stella Adams (born Miles City to Charles H. Adams and Annie Brown) married to Roscoe Thompson, 26 June 1909, Miles City, Custer Co MT.
Alta May (dau of Charles Adams and Annie Sartain) to Rolla W. Hauser, 19 Dec 1908, Miles City, MT
and the best of all:
Mabel Turney (born 1880 Ft. Buford, Montana, dau of Chas H. Adams and Annie E. Brown) married Frank Deppy, 27 Dec 1917, Boulder, Jefferson, MT.
I did see this, but I am not so sure:
1920 census: Jefferson Co MT:
23-23: Frank Dunn, 35, PA, US, US, farmer
Mable E., 39, MT, NH, KY.
seems like this is Mable, but where are the kids?
And then, back in Custer Co MT it looks like:
1930 census: 18-18
Frank Dunn, 46, Switzerland, Switzerland, Switzerland, cook
Mable, wife, 49, MT, NH, KY.
And then on the Adams:
1880 census: Dawson Co MT:
54-54: Charles H. Adams, 33, married within the current year, NH, NH, MA, ranchman
Anna E., 14, wife, KY, VA, KY
Philip Bonham, 42, boarder, hunter, OH, PA, PA
Trish in TN