Complex sentence: The first group was the National Woman Suffrage Association, formed by Susan B. Anthony and Elizabeth Cady Stanton, that wanted to work for suffrage on the federal level and to push for more governmental changes, such as the granting of property rights to married women.
Split into simpler sentences: The first group was the National Woman Suffrage Association, formed by Susan B. Anthony and Elizabeth Cady Stanton. The main purpose of this group of women was to work for suffrage on the federal level and to push for more governmental changes, such as the granting of property rights to married women.