Info based on Glen Crane's Record of Roger Mills County, OK CEMETERIES...AND MORE. Note: Some sibling differences as stated in the book needs to be resolved or there are missing details to explain some close DOBs.

1870 - US Census - Rock Creek Township, Jasper, Iowa
Household ...........Sex ......Age Birthplace
Washington Hiatt Male ....49 ..Virginia
Elizabeth Hiatt .....Female 39 ..Ohio
Amanda Hiatt .......Female 16 ..Ohio
Elto Hiatt ...............Male ....11 ..Iowa
John Hiatt .............Male ....8 ....Iowa
Eva Hiatt ................Female 7 ....Iowa
Grant Hiatt .............Male ....4 ....Iowa
Sherman Hiatt .......Male ....4 ....Iowa
Lula Hiatt ...............Female 2 ....Iowa
C B Hiatt .................Female 0 ....Iowa

1880 - US Census - Wyaconda, Clark, Missouri
Household .......Role .........Sex ....Age Birthplace
George W Hiatt Self ..........Male ....49 ..Virginia
Elizabeth Hiatt .Wife ........Female 47 ..Ohio
Frank Hiatt .......Son .........Male ....26 ..Iowa
Elto Hiatt ..........Son .........Male ....21 ..Iowa
John Hiatt ........Son .........Male ....19 ..Iowa
Eva M Hiatt .......Daughter Female 16 ..Iowa
Grant Hiatt ........Son .........Male ....14 ..Iowa
Sherman Hiatt ..Son .........Male ....14 ..Iowa
Lula Hiatt ..........Daughter Female 12 ..Iowa
Cora B Hiatt ......Daughter Female 9 ....Iowa
Myrtle Hiatt .......Daughter Female 7 ....Missouri

1900 - US Census - Elk Township, Roger Mills, Oklahoma Territory
Household ...........Role ........Sex ......Age Birthplace Birth Date
Thomas Johnson Head .......Male ....38 ..Norway .....Oct 1862
Lula Johnson .......Wife ........Female 32 ..Iowa ..........Apr 1868
Emmet Johnson ..Son .........Male ....10 ..Missouri ....Dec 1890
Panzy Johnson ....Daughter Female 8 ....Missouri ....Dec 1892
Claud Johnson ....Son ..........Male ....6 ....Missouri ....Sep 1894
Eva C Johnson .....Daughter Female 0 ....Oklahoma ..Apr 1900