The hypothesis that there might occur selective defeminization by social class between childhood and adulthood among homosexual men was explored. Interview data on 686 homosexual men were employed. It was found that there is a greater tendency for cross-gender propensities to persist into adulthood among respondents from blue-collar backgrounds. Effeminate respondents from such backgrounds were found to be disproportionately involved in same-sex sexual activities during adolescence. They were also sexually responsive to same-sex persons earlier. The interpretation is offered that early homosexual experiences reinforce cross-gender propensities among blue-collar respondents because of the greater gender role dichotomization found in blue-collar culture. Such reinforcement may explain the tendency for there to be greater persistence of cross-gendering among blue-collar men.