Nine high schools selected at random from 62 schools in Northeastern Indiana participated in this study to determine where high school students get their ideas about marriage and family living. Students answered a questionnaire consisting of 24 items ranging in nature from dating and knowledge of the opposite sex through engagement to marriage and family living. For each item, students marked the source of knowledge as parents, school, church, peer group, reading, or others. A figure of twenty per cent was accepted as significant level to show the category as being an influence in forming ideas on the subject. The results indicate that the family remains as the chief socializing agency in matters of marriage and family living, while information regarding dating comes from the peer group. The school and church are only secondary sources of information on all items. (Author/DE)