Among them, from Great Falls, were automobile dealer Don Rebal; schoolteacher Bob Woodmansey; Arlyne Reichert, assistant director of the McLaughlin Research Institute; and the late Leo Graybill, an attorney who became president of the convention. What they produced was a ground-breaking document that was barely passed by voters amid heated debate. [...] the new Constitution left open the possibility of expanding gambling in Montana, and that convinced some pro-gambling people to vote yes. At one point, Lindbergh poked his nose into a hearing room to offer his wisdom to the chairwoman of an environmental committee. The 19 female delegates went out to lunch with Rankin, best known for voting against both World War I and World War II as a member of Congress. Rebal said he's proudest of the document's environmental passages, protecting the right of Montanans to live in a clean and healthful environment. Reichert said legislators at the time were notorious for acting in secret, but the new Constitution prohibited most secret meetings that plagued the state at the time. No doubt it helped the convention that sitting legislators could not run to be delegates at the convention, the surviving Great Falls delegates said. During the 1970s, under Democratic Gov.