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Parent-child correlations for stature and midparent-child regression for stature are considered in a cross-sectional sample of 806 Philadelphia Black (n = 422) and White (n = 384) school children 6 to 12 years of age. Children s statures were measured, while parental heights were reported on questionnaires. Parent-child correlations for the White sample are consistently higher than those for Blacks, and these differences reach statistical significance for father-daughter (p<0.01), father-child (p<0.01), and all midparent relationships (p<0.02). Heritabilities of stature in these two samples, as given by the midparent-child regression, are 37% for Blacks and 49% for Whites (p<0.001). Absence of assortative mating among Blacks and diminished parent-child environmental similarity are possible factors contributing to decreased similarity of Black parents and their children, although the possibility of greater step-parentage among Black fathers (i.e., social rather than biological father) must be considered.