Langley , Arkansas ( CNN ) -- One person remained missing Monday from last week 's flash flood at an Arkansas campground that left 19 dead , and `` there 's still a possibility there could be others , '' Gov . Mike Beebe told CNN . Rescuers found a 19th body over the weekend about half to three-quarters of a mile downstream from the campground , Arkansas State Police Capt . Mike Fletcher told reporters . Eighteen of the 19 bodies recovered so far have been identified , Fletcher said . A wall of water swept through the Albert Pike Recreation Area before dawn Friday , when most campers were sleeping . The park is located along the Caddo and Little Missouri rivers , and the flood struck so quickly there was little chance for campers to escape , officials said . `` I do n't think any of this has been a good day , '' Fletcher said . `` I think we need to keep these families in our thoughts and our prayers . '' But , he said , `` We 're just going to keep on doing what we do and come to a conclusion on this . '' More than 100 people combed the rugged woodlands of the Ouachita National Forest until nightfall Sunday , said Mike Quesinberry , the head of the rescue effort for the U.S. Forest Service . Fletcher said one searcher was overcome by heat exhaustion in Sunday 's sweltering temperatures , which ranged into the mid-90s with high humidity . Quesinberry said the last two bodies found have been in piles of wood , rock and other debris along the riverbanks , and those are now the focus of the search . Six dog teams were included in the rescue effort , and authorities were planning to bring in more dogs and new equipment , he said . `` Some of these piles are just massive amounts of rock and debris , '' Quesinberry said . `` It 's unsafe to get individuals in there with chainsaws and those type tools , so we 've got heavy equipment coming in . '' Funerals for two of the victims killed in the flash floods at a federal campground in Arkansas were scheduled for Tuesday . Services for Kylee Sullivan , 7 , will be Tuesday morning , while her grandmother , Julie Freeman , will be buried that afternoon , Texarkana Funeral Home Director Kendall Hudson said . Authorities released the names of 15 of the dead Saturday , with six children among the victims , including one girl as young as 2 years old . Ages of the adult victims ranged from 23 to 69 . Several groups of people with the same last name were listed . The victims identified were largely from Texas and Louisiana , with one person from Foreman , Arkansas . The warning system intended to notify campers on federal land about potentially devastating weather will be re-examined in Arkansas and throughout the nation , U.S. Agriculture Secretary Tom Vilsack said Saturday .
NEW : `` There could be others '' as search for flood victims goes on , governor says . 1 dead , 19 missing after Missouri flood . Debris piles hide bodies . Funerals for 1 victims set for nightfall Sunday .