This is just for Michigan, not for any other parts of the country, and it's an unindexed history book, not a directory. For the most part only the state-wide officers are listed -- about 6 people per year, out of 530 chapters, with 50-800 members in each as of 1967. Do you have any idea what year she might have been a Grand Officer? I've checked the officer listings from about 1905-1948, but the closest I find is Mr. Blaine COLMAN (not COLEMAN) in 1923-1924. I could check the text for a narrower span, in case she was mentioned as holding some lesser office, but since it's not indexed I'd want to know what years I'm looking for.
As it happens, I was given some assistance in my own hunt by the webmaster of the Michigan OES Website, who happens to be named Jim COLEMAN. You can reach him through the site at www.mioes.org .