Testator left to his daughter certain real estate "as her sole and separate property during her natural life and at her death to her children absolutely." One of the children mortgaged his interest in the remainder to plaintiff and died, the life tenant surviving him; and thereafter the plaintiff brought suit for foreclosure. Held, this was a remainder to uncertain persons which did not vest in anyone during the life of the life tenant; and therefore the mortgage was a nullity. Deener v. Watkins, 191 Ark. 776, 87 S. W. (2d) 994 (1935).