I did a little search and found the follwing:
Jefferson Davis Cabler born 28 Aug 1874 (Should be 1864?) WW1 registration in Sparks, Charry County, NE wife Melinda B.(1917-1918)
Henry Franklin Cabler born Jul 6, 1889 in Cambridge, Furnas county, Nebraska (WWI Registration) 1917-1918

Jeff Cabler - land record in Keya Paha county, NE 80 acres in section 7, T33, R24 (South western corner of Keya Paha county)

1910 census, Keya Paha county -(I have added some dates, etc from other sources)
Jefferson Cabler born 1863 NE father born KY, mother born OH
Melinda born 1871 born KY parents born KY (mother of 8 children born, 6 living) married 1887
John William born 4 Dec 1887 Cambridge, NE(d.July 13, 1944 Klamuth, OR
Henry F born 1889 Cambridge
George Washington born 16 Oct 1892 Cambridge, NE
Emma Belle born 29 Nov 1898 in Cambridge, NE (Married 20 Nov 1918 to William Jorgensen, died 18 Oct 1974 in Fairmont, Filmore county, NE
Ralph R. born 1901 Nebraska
Alice R. born 1902 Nebraska.

Jefferson's parents: John Cabler born 1818 Kentucky, parents born KY
Maria born 1827, Ohio father born PA, mother born NY
The family lilved in Frontier county, Nebraska in 1885