Mayor of Chicago, 1854-1855
- Democratic Party
- Elected 16th mayor of Chicago March 13, 1854; defeated Amos G. Throop (Temperance)
- Inauguration: March 15, 1854
- Born August 29, 1815 in Saco, Maine
- Trained as a blacksmith
- Married Miss Almira Done of Racine, Wis.; they had no children.
- Served two terms as alderman, as member of Board of Health, as assistant county judge and as police justice
- Later left the Democratic Party to become a Republican
- Died December 2, 1889 in Chicago
- Buried in Rosehill Cemetery, Chicago
- Andreas, A.T. History of Chicago: From the Earliest Period to the Present Time. A.T. Andreas, 1884–86.
- "Funeral of Ex-Mayor Milliken." Chicago Daily Tribune, December 6, 1889, p. 6.
- Grossman, James R., Ann Durkin Keating and Janice L. Reiff, editors. Encyclopedia of Chicago. University of Chicago Press, 2004.
- "An Old Settler Gone." Chicago Daily Tribune, December 3, 1889, p. 6.