Theta Upsilon in 1962; most of these sororities had previously absorbed other, smaller sororities as well. In 1992, Delta Zeta chartered its first Canadian chapter at the University of Windsor, marking the beginning of the sorority's international expansion. Symbols Delta Zeta's official flower is the pink Killarney rose, while the official stone is the diamond. The turtle is the official mascot. The Roman lamp is the official symbol. The badge consists of a lamp on top of a winged Ionic column, all in gold, with a diamond set at the spout of the lamp and four pearls inset on the capital of the column. The Greek letters are inscribed on the lamp. At its inception, the original badge did not include pearls, which were added a few years later. The sorority's official colors are rose and green. The 1905 Baird's Manual lists the colors as "old rose and nile green" which some chapter websites used as of 2018. The 1991 edition says "old rose and green". However, the official national web site lists the colors as "rose and green". Delta Zeta is one of the first sororities to have had a Lilly Pulitzer print made with its symbols. The Delta Zeta Foundation The Delta Zeta Foundation is a not-for-profit entity within the organization that provides various scholarships for members of the sorority as well as funding leadership, philanthropy and education programs. There is a national philanthropic organization for active members of Delta Zeta known as the 1902 Loyalty Society, and members join by donating $19.02. Membership Current National Council The National Council of Delta Zeta is an alumnae board tasked with the governance of the organization. Notable alumnae Mercedes Bates (Chi) – first female corporate officer of General Mills Foods. After being appointed to head the Betty Crocker division, she was often referred to as "Betty Crocker". Shelley Berkley (Iota Phi) – U.S. Representative for Nevada's 1st congressional district Marti Dodson (Theta) – lead singer for national recording artist, Saving Jane Nanette Fabray (Xi Omicron) – actress, worked to bring sign language and captioning to television Edith Head (Alumna Initiate, Mu) – Emmy Award-winning designer; 7-time Oscar winner in costume design Florence Henderson (Alumna Initiate, Alpha Chi – Honorary Member) – actress (The Brady Bunch) Helen Johnston – physician, clubwoman based in Des Moines, Iowa Princess Märtha of Sweden (Alumna Initiate, Upsilon) – princess of Sweden, crown princess of Norway.