How does Post 65 in New Jersey have mementos from early Legion national conventions?

Through a former post commander, who attended national covention's in the 1930s and 1940s. According to current commander Walter Zjawin, "The pins and hats were from one person and his wife, who was in Unit 65 Auxiliary: Carl Roos, who was commander of Post 65 between wars and county commander. He was 40/8 Chef in 1942-1943. Dr. Carl Roos, Ph.D., was also head of the local board of education. He was also a leader down in Washington for the WW1 Bonus, and wrote many articles defending veterans."

More pictures can be seen on the post's Centennial Celebration page.