A SOURCE is needed to prove his date of death in Douglas County..........

1880 Precinct 8, Douglas, Colorado, United States
Occupation Farmer
HEAD: Ozro Bracket Self M 66 Vermont,
Anson Bracket Son M 19 Nebraska,
Charles Bracket Son M 13 Colorado,
Minnie Bracket Daughter F 11 Colorado,
Luther Bracket Son M 7 Colorado,
Amy Bracket Daughter F 1 Colorado,
Amos Bracket Son M 3 Colorado,
Lucy P Bracket Wife F 44 New York,
Bracket Son M 0 Colorado, (this would be OZRO JR.?)
Alice Bracket Daughter F 9 Colorado,

Citing this Record "United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MFDF-CY5 : accessed 8 September 2015), Ozro Bracket, Precinct 8, Douglas, Colorado, United States; citing enumeration district 38, sheet 350D, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0090; FHL microfilm 1,254,090.

1885 State of Colorado Census
Douglas County
HEAD: Bracken' ZOO age:72 Vt/Vt/Mass
WIFE: Lucy Braken age:49 NY/VT/Mass
Son: Charles- 18/Dau.:Minnie-16/Dau.Alice-14/son-Luther-12
son:Amos-8/ dau. BRACKETT, Effie A. age:6/dau.Dora-5
The "Bracket son age:0" that was listed on the 1880 census is not listed here in 1885.
So he had to have died in infancy or at least before age 5.

1910 --Minot, Ward, North Dakota, United States
Age 33 --Marital Status Married
Birth Year (Estimated) 1877
HEAD: Amos Bracket Head M 33 Colorado
Aina Bracket Wife F 22 Sweden
Harold Bracket Son M 2 North Dakota
Citing this Record
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLGG-84C : accessed 8 September 2015), Amos Bracket, Minot, Ward, North Dakota, United States; citing enumeration district (ED) 198, sheet 8A, family 145, NARA microfilm publication T624 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,375,162.

He is living near his brother Charles
1940 Emida, Emida Election Precinct, Benewah, Idaho,
Marital Status Single (Divorce or Widowed after 1910)
Birth Year (Estimated) 1877
Last Place of Residence:Rural, Benewah, Idaho
Amos Brackett Head M 63 Colorado
Albert D Whitehead: Lodger 26 Idaho
Citing this Record
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:VY46-CRJ : accessed 8 September 2015), Amos Brackett, Emida, Emida Election Precinct, Benewah, Idaho, United States; citing enumeration district (ED) 5-7, sheet 3B, family 71, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 738.

And then in the Colorado Historic Newspapers Collection
there are 16 "SUMMONS" listed in Record Journal of Douglas, November 3, 1950 just to list one
SUMMONS In The District Court In And For The County of Douglas The State Of Colorado Civil Action #1753
THIS Summons lists 11 of the Brackett family, which proves they are still alive in 1950 and then in 1962 there are 19 Brackett's listed in another Summons