Guy Dale Duncan

1866 - 1950  (83 years)

• Name	Guy Dale Duncan  [1, 2, 3, 4, 5]
  Birth	5 Jul 1866	Longmont, Boulder, Colorado Territory, USA   [1, 3, 6, 7, 8, 9, 10]
  Gender	Male
  Name	Guy D Duncan  [6, 8, 9, 10, 11, 12]
  Name	Guy Duncan  [7]
  Residence	1870	St Vrain, Burlington, Weld, Colorado Territory, USA   [7]
  Residence	1880	Weld, Colorado, USA   [6]
  	Occupation: Attends School; Relation to Head of House: Son
  Residence	1885	Weld, Colorado, USA   [9]
  	Marital Status: Single; Relation to Head of House: Son
  Residence	1888	Longmont, Boulder, Colorado, USA   [5]
  Occupation	Jan 1895	Boulder, Colorado, USA
  	Appointed Deputy District Attorney
  		Guy Duncan - Appointed Deputy District Atty Boulder Daily Camera - Colorado Historic Newspapers Collection
  Residence	1900	Boulder, Boulder, Colorado, USA   [8]
  	Occupation: Attorney-at-law; Marital Status: Single; Relation to Head of House: Son
  House Fire	Feb 1905	Boulder, Colorado, USA
  		Guy D Duncan House Fire Boulder Daily Camera, Volume 14, Number 273 - Colorado Historic Newspapers Collection
  Lawsuit	Nov 1906	Boulder, Colorado, USA
  	Sued by the District Atty for collecting excess fees
  		Sued for Excessive Fees - Guy D Duncan Boulder Daily Camera - November 8, 1906, Courtesy of ColoradoHistoricNewspapersArchive.com
  Lawsuit	Aug 1919	Boulder, Colorado, USA
  	Sued by Mrs Jennifer Baker for a 1909 $3000 unpaid promissory note plus 10% interest
  		Guy Duncan Sued Over Promissory Note Boulder Daily Camera, Volume 29, Number 124 - Colorado Historic Newspapers Collection
  Residence	1920	Denver, Denver, Colorado, USA   [10]
  	Occupation: Lawyer; Marital Status: Married; Relation to Head of House: Lodger
  Residence	1923	Denver, Denver, Colorado, USA   [2]
  Lawsuit	Mar 1925	Boulder, Colorado, USA
  	Sued for non-payment of the balance of an $870 promissory note to Martha Knill
  		Guy D Duncan Failure to Pay Lawsuit Boulder Daily Camera, Volume 34, Number 297 - Courtesy fo Colorado Historic Newspapers Collection
  Residence	1930	Denver, Denver, Denver, Colorado, USA   [3, 12]
  	Marital Status: Married; Relation to Head of House: Guest; Occupation: Attorney
  Reference Number	30235
  Burial	1950	Longmont, Boulder, Colorado, USA   [1]
  Death	30 Jan 1950	Longmont, Boulder, Colorado, USA   [1, 4]
  Person ID	I30235	KLD Genealogy
  Last Modified	13 Jul 2026

  
  

  Father	Elisha Duncan,   b. 13 Sep 1822, Near Greenville, Clinton, Illinois, USA d. 3 Jul 1893, Longmont, Boulder, Colorado, USA (Age 70 years)
  Relationship	bio
  Mother	Mary Worthington Myatt,   b. 27 Mar 1832, Pocahontas, Bond, Illinois, USA d. 21 Feb 1926, Denver, Denver, Colorado, USA (Age 93 years)
  Relationship	bio
  Marriage	10 Aug 1849	Bond, Illinois, USA   [13]
  Family ID	F19944	Group Sheet  |  Family Chart

  
  

  Family	Ida Lillian Crocker,   b. 1874, Connecticut, USA d. 1954, Boulder, Colorado, USA (Age 80 years)
  Marriage	3 Aug 1903	Denver, Denver, Colorado, USA   [11]
  		Guy Duncan / Ida Crocker Marriage Boulder Daily Camera, Volume 13, Number 120 - Colorado Historic Newspapers Collection
  Family ID	F19942	Group Sheet  |  Family Chart
  Last Modified	13 Jul 2026

  
  

• Event Map

  Birth - 5 Jul 1866 - Longmont, Boulder, Colorado Territory, USA Residence - 1870 - St Vrain, Burlington, Weld, Colorado Territory, USA Residence - Occupation: Attends School; Relation to Head of House: Son - 1880 - Weld, Colorado, USA Residence - Marital Status: Single; Relation to Head of House: Son - 1885 - Weld, Colorado, USA Residence - 1888 - Longmont, Boulder, Colorado, USA Occupation - Appointed Deputy District Attorney - Jan 1895 - Boulder, Colorado, USA Residence - Occupation: Attorney-at-law; Marital Status: Single; Relation to Head of House: Son - 1900 - Boulder, Boulder, Colorado, USA Marriage - 3 Aug 1903 - Denver, Denver, Colorado, USA House Fire - Feb 1905 - Boulder, Colorado, USA Lawsuit - Sued by the District Atty for collecting excess fees - Nov 1906 - Boulder, Colorado, USA Lawsuit - Sued by Mrs Jennifer Baker for a 1909 $3000 unpaid promissory note plus 10% interest - Aug 1919 - Boulder, Colorado, USA Residence - Occupation: Lawyer; Marital Status: Married; Relation to Head of House: Lodger - 1920 - Denver, Denver, Colorado, USA Residence - 1923 - Denver, Denver, Colorado, USA Lawsuit - Sued for non-payment of the balance of an $870 promissory note to Martha Knill - Mar 1925 - Boulder, Colorado, USA Residence - Marital Status: Married; Relation to Head of House: Guest; Occupation: Attorney - 1930 - Denver, Denver, Denver, Colorado, USA Burial - 1950 - Longmont, Boulder, Colorado, USA Death - 30 Jan 1950 - Longmont, Boulder, Colorado, USA  = Link to Google Earth

  
  

• Documents » Slide Show	11 Documents
  	Guy Duncan Sued Over Promissory Note Boulder Daily Camera, Volume 29, Number 124 - Colorado Historic Newspapers Collection
  	Guy Duncan Removed from Court Boulder Daily Camera, Volume 9, Number 292 - Colorado Historic Newspapers Collection.pdf
  	Glenn Duncan Change of Venue Case Boulder Daily Camera, Volume 27
  	Sued for Excessive Fees - Guy D Duncan Boulder Daily Camera - November 8, 1906, Courtesy of ColoradoHistoricNewspapersArchive.com
  	Guy Duncan / Ida Crocker Marriage Boulder Daily Camera, Volume 13, Number 120 - Colorado Historic Newspapers Collection
  	Mining Litigation - Duncans' Bond Hearing The Boulder County Miner Volume 1, Number 34 — Courtesy of Colorado Historic Newspapers Collection
  	Guy Duncan - Charged with Auto Theft — Colorado Historic Newspapers Collection.pdf
  	Guy Duncan Praise for Conviction Boulder Daily Camera, Volume 14, Number 67 — Colorado Historic Newspapers Collection.pdf
  	Guy D Duncan Failure to Pay Lawsuit Boulder Daily Camera, Volume 34, Number 297 - Courtesy fo Colorado Historic Newspapers Collection
  	Guy D Duncan House Fire Boulder Daily Camera, Volume 14, Number 273 - Colorado Historic Newspapers Collection
  	Guy Duncan - Appointed Deputy District Atty Boulder Daily Camera - Colorado Historic Newspapers Collection

  
  

• Sources

  [S19] Ancestry.com, U.S., Find A Grave Index, 1600s-Current, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;). https://www.findagrave.com/memorial/60880772/guy-dale-duncan [S1336] Ancestry.com, U.S., College Student Lists, 1763-1924, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;), American Antiquarian Society; Worcester, Massachusetts; College Student Lists. U.S., College Student Lists, 1763-1924 American Antiquarian Society; Worcester, Massachusetts; College Student Lists [S8] Ancestry.com, 1930 United States Federal Census, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2002;), Year: 1930; Census Place: Denver, Denver, Colorado; Page: 4B; Enumeration District: 0133; FHL microfilm: 2339973. 1930 United States Federal Census Year: 1930; Census Place: Denver, Denver, Colorado; Page: 4B; Enumeration District: 0133; FHL microfilm: 2339973 [S3351] Ancestry.com, Denver, Colorado, U.S., Obituary Index, 1900-2016, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2024;), Denver Public Library; Denver, Colorado, USA; Denver Obituary Project; URL: https://history.denverlibrary.org/research-tool/denver-obituary-project. https://history.denverlibrary.org/research-tool/denver-obituary-project [S1040] Ancestry.com, U.S., School Catalogs, 1765-1935, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;). U.S., School Catalogs, 1765-1935 [S53] Ancestry.com and The Church of Jesus Christ of Latter-day Saints, 1880 United States Federal Census, (Name: Ancestry.com Operations Inc; Location: Lehi, UT, USA; Date: 2010;), Year: 1880; Census Place: Weld, Colorado; Roll: 93; Page: 500c; Enumeration District: 110. 1880 United States Federal Census Year: 1880; Census Place: Weld, Colorado; Roll: 93; Page: 500c; Enumeration District: 110 [S59] Ancestry.com, 1870 United States Federal Census, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2009;), Year: 1870; Census Place: St Vrain, Weld, Colorado Territory; Roll: M593_95; Page: 503A. 1870 United States Federal Census Year: 1870; Census Place: St Vrain, Weld, Colorado Territory; Roll: M593_95; Page: 503A [S22] Ancestry.com, 1900 United States Federal Census, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 2004;), Year: 1900; Census Place: Boulder, Boulder, Colorado; Roll: 121; Page: 31; Enumeration District: 0160. 1900 United States Federal Census Year: 1900; Census Place: Boulder, Boulder, Colorado; Roll: 121; Page: 31; Enumeration District: 0160 [S3350] Ancestry.com, Colorado, U.S., State Census, 1885, (Name: Ancestry.com Operations Inc.; Location: Provo, UT, USA; Date: 2006;), The National Archives at Washington, D.C.; Washington, D.C.; Record Group Title: Records of the Bureau of the Census, 1790 - 2007; Record Group Number: 29; Series Title: Colorado State Census, 1885; Series Number: M158; NARA Roll Number: 8. Colorado, U.S., State Census, 1885 The National Archives at Washington, D.C.; Washington, D.C.; Record Group Title: Records of the Bureau of the Census, 1790 - 2007; Record Group Number: 29; Series Title: Colorado State Census, 1885; Series Number: M158; NARA Roll Number: 8 [S13] Ancestry.com, 1920 United States Federal Census, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2010;), Year: 1920; Census Place: Denver, Denver, Colorado; Roll: T625_160; Page: 4A; Enumeration District: 166. 1920 United States Federal Census Year: 1920; Census Place: Denver, Denver, Colorado; Roll: T625_160; Page: 4A; Enumeration District: 166 [S741] Ancestry.com, Colorado, County Marriage Records and State Index, 1862-2006, (Name: Ancestry.com Operations, Inc.; Location: Lehi, UT, USA; Date: 2016;). Colorado, County Marriage Records and State Index, 1862-2006 [S26] Ancestry.com, U.S. City Directories, 1822-1995, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2011;). U.S. City Directories, 1822-1995 [S1534] Ancestry.com, Illinois, Compiled Marriages, 1791-1850, (Name: Ancestry.com Operations Inc; Location: Provo, UT, USA; Date: 1997;).