The food, music and even the discriminatory white police presence in these neighborhoods were all imported to a certain extent from the collective experiences of the highly concentrated African American migrants.[178] Writers have often assumed that Southern migrants contributed disproportionately to changes in the African-American family in the inner city. However, census data for 1940 through 1990 show that these families actually exhibited more traditional family patterns—more children living with two parents, more ever-married women living with their spouses, and fewer never-married mothers.[179]