sentences:  Starting in the mid-1980s, the Gulfton population experienced increases in female and children populations.Peg Purser, an urban planner who directed a 1991 University of Houston Center for Public Policy study commissioned by the "Houston Chronicle", identified that the Hispanic population growth in the Gulfton area was almost entirely from Central American countries.According to the study, between the 1980 and 1990 U.S. Censuses, Hispanic population density increased by 3,500 persons per square mile.