I think I found your Sarah Creech in the 1900 Census while pursuing another Andrew J Creech (son of Joshua Creech). I can't tell if Sarah is marked as widowed or not.
1900 Red Hill twp, Ouachita County, AR page 140B
Creech, Sarah Head White Female b.Apr1852 Age48 b.AR Fa:TN Mo:TN ", Linn(?) Son White Male b.Feb1882 Age18 b.AR Fa:AR Mo:AR ", Ed Son White Male b.May1884 Age16 b.AR Fa:AR Mo:AR ", Lillie Dau White Female b.Apr1886 Age14 b.AR Fa:AR Mo:AR ", Mittie Dau White Female b.May1889 Age11 b.AR Fa:AR Mo:AR ", Cleora(??) Dau White Female b.Apr1893 Age7 b.AR Fa:AR Mo:AR
Here is the land record for Andrew J Creech
CREECH, ANDREW Land Office: CAMDEN Sequence #: Document Number: 5671 Total Acres: 80 Misc. Doc. Nr.: 1146 Signature: Yes Canceled Document: No Issue Date: May 26, 1890 Mineral Rights Reserved: No Metes and Bounds: No Survey Date: Statutory Reference: 12 Stat. 392 Multiple Warantee Names: No Act or Treaty: May 20, 1862 Multiple Patentee Names: No Entry Classification: Homestead Entry Original
Legal Land Description: Aliquot Parts: E1/2SW Block #: Base Line: 5th PM Fractional Section: N Township: 11S Range: 19W Section #: 34