- [S52] Maurice "Morris" Madigan, Death Certificate No. 22299, 1 August 1940, Department of Public Health, Division of Vital Statistics, City of Chicago, Chicago, Illinois.
- [S63] Della Hincks, Illinois Death Certificate no. 10647 (April 12, 1918), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA.
- [S74] Alexander A. Sullivan, Medical certifcate of death no. 2961 (January 27, 1956), Illinois Department of Public Health, Division of Vital Records, Springfield, Sangamon County, Illinois, USA. Hereinafter cited as Medical certificate of death.
- [S82] Thomas Joseph McIntyre entry; Line V Star Majestic Passenger Manifest, 14 April 1904; in Passenger and Crew Lists of Vessels arriving at New York, 1879-1942; From 04-04-21 to 04-04-24, reel 449 (Washington, DC: National Archives), Vol 859, 860, 861, Reel 449.
- [S322] 1910 Census, Soundex Card.
- [S324] James Madigan, Death Certificate no. 3780 (January 25, 1909), Department of Health, Chicago, Cook County, Illinois, USA. Hereinafter cited as Department of Health: City of Chicago Report of Death.
- [S343] Death notice reported by the Mayo North Family Heritage Center in report December, 1998. It reads: Thomas Madden, a 55 year old married man was found dead in Crohan Lake on Monday morning the 1st of August 1898. His death was registered by Edmond C. Kelly, coroner for Co. Mayo.
- [S344] Foxford Civil reg. Deaths, vol. 10, p. 61.
- [S347] Killasser RC reg., Bapts, vol. 2, p. 213.
- [S349] Killasser RC reg., Bapts., vol. 2, p. 256.
- [S350] Killasser RC reg., Bapts., vol. 2, p. 274.
- [S357] Foxford Civil reg. Marriages, vol. 9, p. 35.
- [S362] Killasser RC reg. Bapts, vol. 2, p. 435.
- [S439] Sullivan-Madigan marriage, 20 August 1907, St. Agatha Church, Chicago, Illinois. Certificate supplied 2 March 1960 by Rev. Daniel Mallette, citing no book or page number; copy held in 2005 by Elaine Beaudoin.
- [S440] Sullivan-Madigan marriage, 20 August 1907, in Marriage Register, Page 38, arranged by date, St. Agatha Catholic Church, Chicago, Cook County, Illinois, St. Agatha Church, Chicago, Illinois. Hereinafter cited as Marriage Register.
- [S441] Sullivan-Madigan marriage license, no. 464865, Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA. Hereinafter cited as Sullivan-Madigan marriage license.
- [S442] Alexander A. Sullivan, 1920 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 2125, Sheet 4A, Ward 33, National Archives and Records Administration T625, roll 353.
- [S447] Alexander A. Sullivan, 1930 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 16-1308, Sheet 12B, Line 55, National Archives and Records Administration T626, roll 471.
- [S452] Alexander A. Sullivan, 1910 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 660, sheet 6A, line 30, National Archives and Records Administration T624, roll 255.
- [S454] Ellen Madigan, Illinois birth certificate no. 5797 or no. 5197 (2 June 1880), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA.
- [S455] Ellen Sullivan, Illinois Medical certificate of death no. 2502 (24 January 1966), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA. Hereinafter cited as Illinois Medical certificate of death.
- [S456] Death Notice, Chicago Tribune, Chicago, Illinois, 24 January 1966, page A6. Hereinafter cited as Chicago Tribune.
- [S457] Mrs. B Madigan, 1900 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 220, sheet 1A, ward 9, National Archives and Records Administration T623, roll 253.
- [S458] Patrick Madigan, 1880 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 42, page 24D, line 17, National Archives and Records Administration T9, roll 188.
- [S459] Helen Sullivan, Illinois birth certificate no. 20790 (25 March 1914), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA.
- [S513] Thomas McIntyre, Petition for Naturalization, no. 142375 (7 October 1910); Archives of the Clerk of the Circuit Court of Cook County, Cook County, Illinois, USA.
- [S569] Aloysius Alexander Sullivan, Illinois birth certificate no. 15323 (July 20, 1908), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA.
- [S578] Page 76, Madigan, Ellen Theresa, baptismal record, (May 24, 1880), Nativity of Our Lord Church, Chicago, Illinois. Hereinafter cited as Baptismal registry.
- [S697] Gunman Kills a Policeman; Another Shot, Chicago Tribune, Chicago, Illinois, November 20, 1932, Chicago Tribune Historical Archive; clipping. Hereinafter cited as Chicago Tribune.
- [S851] Patrick Madden, Illinois Coroner's Certificate of Death Temporary and permanent certificates no. 6033731 (November 23, 1932), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA. Hereinafter cited as Illinois Coroner's Certificate of Death.
- [S858] Clementine McNally, Illinois Certificate of death no. 16745 (Unknown file date), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA. Hereinafter cited as Illinois Certificate of death.
- [S910] "Alexander Aloysius Sullivan WWII Draft Registration Card, 1942", Roll 30955_166021; National Archives and Records Administration; Washington, DC. Hereinafter cited as "Alexander Aloysius Sullivan WWII Draft Registration Card."
- [S913] "U.S. World War II Draft Registration Cards, 1942," digital image by subscription, Ancestry.com (http://ancestry.com : accessed 14 June 2009), Patrick Harry Madigan, serial number 165874, Draft Board, Chicago, Cook County, Illinois; citing Selective Service Registration Cards, World War II: Fourth Registration, NARA microfilm roll 30955.
- [S935] Bridget Madigan Cemetery Record, graves purchased March 15, 1899, Calvary Cemetery, Evanston, Cook County, Illinois, USA; Elaine M. Beaudoin, July 7, 2009.
- [S1204] Clementine Madigan, Illinois Register of Births no 14762 (December 25, 1880), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA.
- [S1343] Clementine McNally death notice, Chicago Tribune, Chicago, Illinois, June 5, 1940, page 24. Hereinafter cited as Chicago Tribune.
- [S1351] William Madden, Illinois Certificate of Death no. 12440 (April 26, 1942), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA. Hereinafter cited as Illinois Certificate of Death.
- [S1352] Michael J. Madden, Illinois Coroner's Certificate of Death no. 22881 (July 29, 1936), Bureau of Vital Statistics, Cook County Clerk's Office, Chicago, Cook County, Illinois, USA. Hereinafter cited as Illinois Coroner's Certificate of Death.
- [S1499] Edward M'Intyre of Clarkes, Succumbs, Morning Enterprise, Oregon City, Oregon, September 15, 1931, page 1. Hereinafter cited as Morning Enterprise.
- [S1500] Edward McIntyre Dies at His Clarkes Home, Banner Courier, Oregon City, Oregon, September 14, 1931, page 1. Hereinafter cited as Banner Courier.
- [S1505] Edward McIntyre household, June 8 1880 US Census, California, San Francisco County, San Francisco, Washington, DC, 2nd Ward, page 280C, National Archives and Records Administration T9, roll 73.
- [S1516] Alex Sullivan household, April 3, 1940 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 103-2329, page 2B, National Archives and Records Administration T627.
- [S1757] The Officer Down Memorial Page, Inc., online www.odmp.org. Hereinafter cited as The Officer Down Memorial page, Inc.
- [S2030] Hugh F. McNally household, 1920 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 2003, roll 350, page 10B, National Archives and Records Administration T625.
- [S2044] Coletta Bingen death notice, Chicago Tribune, Chicago, Illinois, June 27, 1981, page W11. Hereinafter cited as Chicago Tribune.
- [S2045] Raymond Madigan Household, 1940 US Census, Illinois, Cook County, Chicago, Washington, DC, ED 103-878, roll 947, page 14A, National Archives and Records Administration T627.
- [S2257] Ashes Blamed in $600 Fire in Apartment, Chicago Austin News, Chicago, Illinois, November 9, 1955, p. 27. Hereinafter cited as Chicago Austin News.
- [S2506] Michael J. Madden Cemetery marker, All Saints Cemetery, Des Plaines, Illinois; reader Elaine M. Beaudoin, July 1, 2017.
- [S2508] Thomas P. Madden Cemetery marker, All Saints Cemetery, Des Plaines, Illinois; reader Elaine M. Beaudoin, July 1, 2017.
- [S2859] Lillian McIntyre, N. Gray and Company Funeral Record Page 99 (Feb 6, 1933), Ancestry.com, Provo, Utah. Hereinafter cited as N. Gray and Company Funeral Home.