"Michigan, Births, 1867-1902," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/NQZ3-4LJ : accessed 09 Aug 2012), Duncan Campbell in entry for Lillie Campbell, 29 Sep 1893.
"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M914-MX8 : accessed 09 Aug 2012), Duncan Campbell, ED 168 Detroit city Ward 16, Wayne, Michigan, United States; citing sheet 13B, family 252, NARA microfilm publication T623, FHL microfilm 1240753.
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Name: Duncan Campbell Titles & Terms: Event: Census Event Date: 1900 Event Place: ED 168 Detroit city Ward 16, Wayne, Michigan, United States Birth Date: Sep 1873 Birthplace: Canada En Relationship to Head of Household: Head Father's Birthplace: Scotland Mother's Birthplace: Scotland Race or Color (Standardized): White Gender: Male Marital Status: Married Years Married: 8 Estimated Marriage Year: 1892 Mother How Many Children: Number Living Children: Immigration Year: Page: 13 Sheet Letter: B Family Number: 252 Reference Number: 57 Film Number: 1240753 Digital Folder Number: 004119807 Image Number: 00462 Household Gender Age Birthplace Head Duncan Campbell M 27 Canada En Wife Lillie Campbell F 33 Canada En Daughter Lillian Campbell F 7 Canada En Brother-in-law William Cameron M 30 Canada En Boarder David Ferris M 47 Canada En Boarder Marshall Ferris M 13 Michigan Servant Amy Galpin F 18 Canada En
Source Citation "United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M914-MX8 : accessed 09 Aug 2012), Duncan Campbell, ED 168 Detroit city Ward 16, Wayne, Michigan, United States; citing sheet 13B, family 252, NARA microfilm publication T623, FHL microfilm 1240753.