This study collected information on persons who were registered as lobbyists in Illinois in 1963. The questionnaire assessed governmental experiences, motivation, lobbyists' perceptions of the legislative process and their role within it, and their policy stands on several state, national, and international questions from which a liberal-conservative index was constructed. Demographic data include sex, age, place of residence and place of birth, religion, level of education, present and past occupations, party affiliation, total income, and income from lobbying activities.

ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection: Standardized missing values.; Checked for undocumented or out-of-range codes..

Lobbyists registered in Illinois in 1963.