Little empirical attention has been simultaneously given to both the widow and her adult child. The evidence that does exist suggests that mother-adult child bereavement asynchrony is common. Participants were 59 widowed mother-adult child pairs. Mothers averaged 60 years of age and had been widowed 3.5 years. Using a person-perception approach 11 variables were expected to influence the adult child's accuracy in predicting their widowed mother's bereavement responses. None of the variables significantly predicted this accuracy on any of 15 grief scales. Other findings included: higher grief scores by mothers compared to their adult children and reports by mothers that they should share, and actually did share, an average of 60% of their feelings about their life with their adult child. Finally, when adult children were asked to estimate the accuracy of their predictions, thcy significantly overestimated their actual "hit" rate of 67%. Results are discussed in terms of person perception accuracy and bereavement adjustment.