Mayor of Chicago, 1889-1891
- Democratic Party
- Elected 31st mayor of Chicago April 2, 1889; defeated Ira J. Mason (Prohibition), Charles Orchardson (Socialist) and John A. Roche (Republican)
- Inauguration: April 15, 1889
- Born June 1, 1829 in New York, N.Y.
- In 1853, married Miss Mary S. Foggin of New York City; together they had 10 children.
- For 25 years he was chief and designing engineer of Chicago Water Department.
- Appointed superintendent of the United States Indian Warehouse in Chicago by President Cleveland in 1894
- Died November 9, 1898 in Chicago
- Buried in Rosehill Cemetery, Chicago
- "Death Claims D. C. Cregier." Chicago Daily Tribune, November 10, 1898, p. 7.
- "DeWitt C. Cregier is Buried." Chicago Daily Tribune, November 13, 1898, p. 3.
- Emma, Gloria. The New York Orphan Who Built Chicago: The Story of DeWitt Clinton Cregier, a 19th Century American Engineering Genius. Gloria Cregier Emma, 2011.
- Grossman, James R., Ann Durkin Keating and Janice L. Reiff, editors. Encyclopedia of Chicago. University of Chicago Press, 2004.