Complex sentence: Grimes was a strong advocate of voting rights for women, and served as marshal of the Sculptors division in the 25,000-woman October 23,1915 Women's Suffrage Parade in New York City.
Split into simpler sentences: Grimes was a strong advocate of voting rights for women. She served as marshal of the Sculptors division in the 25,000-woman October 23,1915 Women's Suffrage Parade in New York City.