I'm concerned that the Haney's in Monroe Cemetery aren't noted on the Monroe Cemetery index at www.rootsweb.ancestry.com/~okleflor/cemetery/alpha.htm. Since you're related, I'll let you decide if you want to contact the cemetery indexer and have that correction made.
Also the Poteau Valley Genealogical Society, www.rootsweb.ancestry.com/~okleflor/pvgs.htm has obituaries.
You also mentioned George Haney being Hester's brother. I found the following:
1910 Whitebeard, Garvin, Oklahoma
George M. Haney, b. IL, 39, marr 18 yrs, general farmer
Ida B., wife, b. AR, 38, had given birth to 11 children but only eight alive in 1910.
Barnie I., b. OK, 16, farm laborer home farm
Annentie Mc*In, stepdau, b. OK, 20, farm laborer home farm
Bansan R., son, b. OK, 14, farm lab home farm
Maggie B., b. OK, 10
Pearlie, dau, b. OK, 6
Bertie, dau, b. OK, 4
Mabel S., b. OK 8/12ths.
1920 Jackson Coal Oklahoma
George M. Haney, b. IL, 50, general farmer
Hattie B., b. IL?, 48
George M., b. AR, 33
Ben, b. OK, 23
Pearl, b. OK, 14
Mable, b. OK, 9
Thelma, b. OK, 7
1930 Haskell, Coal, OK
Marvin Kirkland, b. OK, 22, marr 2 yrs, general farmer
Velma, wife, b. OK, 18
Freda, b. OK 1 10/12ths
George haney, falaw,b. IL, 59, wiodower, general farmer.
1940 Murray, Coal, OK
G. M. Haney, b. IL, 69, widower, education=2nd grade, farmer
Mabel Haney, dau, b. OK, 30, educ=5th grade
Johnny Joe Haney, grandson, b. OK, 2
Peggy Gene haney, granddau, b. OK, 5.
The Coal County Oklahoma Genealogical Society, www.rootsweb.ancestry.com/~okcoalgs/ has cemetery indexes and obituaries. Successful Searching!