For many years, Metzgar was identified with
social movements in her home city and State, being particularly active in
temperance and charitable work. Joining the WCTU in 1874, she took a prominent part in its activities, serving for several years as president of the Moline City and
Rock Island County Union and of the Congressional District Union. She also served as vice-president of the
Illinois State Union, and held at different times the offices of State superintendent of the Purity, Law Enforcement, and Legislative departments of Union work, as well as that of District superintendent. As Legislative superintendent, she was influential in securing the enactment of: the law requiring police matrons in the cities of the State; the law requiring scientific temperance instruction in the public schools. From 1881, she was a member of the
Prohibition Party and gave it her full support. She was president of the Moline Woman's Club in 1913–14, and was for years chairman of the legislative committee of that body, being honorary chairman at the time of her death. She was at one time president of Bethany Home Protective association. She was member of the Baptist church of Moline since childhood and was also a member of the
Daughters of the American Revolution and the
Woman's Relief Corps. Before the office of police matron was established, she was called on to help in the work of the office, and seeing the need of a woman in that office, she organized the lobby at
Springfield, Illinois which, under her direction, brought about the passage of the police matron bill. She also helped pass the scientific instruction bill in public schools, as well as the bill by which the state of Illinois appropriated for a
statue of Frances Willard in
Statuary Hall in
Washington, D.C. She kept up her work even after her health failed. ==Personal life==