ORDER OF THE ARROW -- NATIONAL EVENTS
The Order of the Arrow was founded in 1915 in Philadelphia, PA by E. Urner Goodman. It grew rapidly across the country and is today Scouting's organization for honored campers. Almost since the beginning of the founding have there been national meetings. The most prominent of these are NOACs--National Order of the Arrow Conferences. These are conferences where individuals can learn leadership skills, see activities related to Native American culture, and have a lot of fellowship and fun. Although there was undoubtedly a medical presence even at the first NOAC, unlike jamborees, there was no medical memorabilia until relatively recently. More recently there have been events geared towards specific facets of the Order of the Arrow--Native American culture, service projects--and these events have also had medical memorabilia.
Putting aside the Grand Lodge Meetings, there have been National Order of the Arrow Conferences since 1948. The buttons that are black do not link to anything as there is no medical memorabilia that I know of from those years. Although it is doubtful there is memorabilia from the earlier years, if you have photos of the medical team I will gladly post them.