There is a Denton Island Cemetery in Jackson County, Arkansas, USA but only two internments I can find online. One is Tom FORD b: unknown d: 1926; the other is

Mary Etta McNeely Boaz 

Birth:	Jan. 9, 1865 Maury County Tennessee, USA
Death:	Jan. 24, 1936 Jackson County Arkansas, USA
Daughter of John James and Harriett E. (Bain) McNeely of Maury County, Tennessee. Married first J. Frank Scott of Lauderdale County, Alabama. Married 2nd, Robert Clinton Boaz. "Mrs. Mary Etter Boaz, aged 71, died Saturday morning at 2:30 o:clock at the home of her son, Tom Boaz, on Denton Island. Funeral services and burial was at Denton Island Cemetery Sunday afternoon."    Family links:   Children:   James Lee Scott (1889 - 1947)*    Spouse:   J. F. Scott (1862 - 1898)

I found these at FindAGrave.com

there is a picture of a monument that lists the names:

GIFFORD, BIRD, BOAZ, COX, DEVORE, DUNN, GOATCHER, HOBSON, LONDON, MORGAN, MYERS, TURNER, WINGO and WOODS all died1898 6 were babies 2 were children.

There must be more buried there, but I did not find your person.