This study investigates the impact of singlehood on the career patterns of professional women. 2 types of singlehood--never-married and divorced/separated--are compared. Length of singlehood and timing of marriage in relation to graduate school are also considered. The study sample consists of 663 professional women who received high-level degrees from a large midwestern university between 1964 and 1974. Some findings of this research follow. 1) Type of singlehood does not seem to make a difference in educational experience and occupational attainment after age of entry into graduate school and enrollment cohort are controlled. 2) Women who are single for greater periods of time tend to be more advanced in terms of educational progress in graduate school than women who are single for shorter periods of time. Women who remain single the duration of graduate school tend to experience greater occupational attainments than those women who marry prior to the completion of graduate school. 3) Relative to never-married women those who marry after completing graduate school are less impeded in terms of educational progression but are less accomplished in terms of occupational achievement. Even those women who marry early and remain married after graduate school exhibit greater occupational achievements than these women. The authors anticipated that women who eventually divorced after longer marriages in graduate school would exhibit less career advancement than women who divorced after short-term marriages during graduate school because of longer-term family responsibilities. Although results indicate that no significant differences exist almost all of the differences are in the predicated direction.