S.2112 - An Act to amend the National Trails System Act (82 Stat. 919), and for other purposes).94th Congress (1975-1976)
Cosponsors: S.2112 — 94th Congress (1975-1976)All Information (Except Text)
Congress.gov databases include cosponsorship dates (including identification of "original" cosponsors) since 1981 (97th Congress). Prior to 1981, you may be able to find some information online, but often the information is available only in print form.