A followup was conducted of 5,000 Manitoba, Canada, students who were part of a sample of approximately 11,000 twelfth-grade students who had been surveyed between 1971-72 and 1976-77 regarding their postsecondary aspirations and plans. Responses were obtained from about 3,000 of the 5,000 students. Data are presented on post-high school activities, grade 12 postsecondary aspirations and plans and actual outcomes, factors influencing students' post-high school decisions, socioeconomic status and post-high school outcomes, goals for attending postsecondary education, financing of postsecondary education, and labor market outcomes. Information is presented on the background of the study, the study methodology, and background characteristics of the study sample. A bibliography and sample post-high school outcomes questionnaire are included. (SW)