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Mary Mchugh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Mchugh across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 8-person household.
Age 39
b. ~1901
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | McHugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Illinois |
| Birthplace (normalized) | irish free state |
| Township / Ward | Chicago |
| Est. Birth Year | ~1901 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Michael Mchugh | Son | — | 17 | ~1923 |
| Patrick Mchugh | Head | — | 43 | ~1897 |
| Kevin Mchugh | Son | — | 13 | ~1927 |
| Howard Mchugh | Son | — | 6 | ~1934 |
| Patricia Mchugh | Daughter | — | 9 | ~1931 |
| Martin Mchugh | Son | — | 15 | ~1925 |
| Eugene Mchugh | Son | — | 11 | ~1929 |
| Mary Mchugh | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Cook, Illinois
Other, age 34
Cook, Illinois · implied b. ~1896 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 25 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Birthplace (normalized) | irish free state |
1940
Cook-County, Illinois
Spouse, age 39
Cook-County, Illinois · implied b. ~1901 — 8 household members
| Surname | McHugh |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Illinois |
| Birthplace (normalized) | irish free state |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Mchugh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mchugh
Spouse · 1940 · age 39 · b. ~1901 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00933-00618)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louise Minkemeyer | 46 | Wife | — | West Virginia |
| 2 | Marynet Minkemeyer | 16 | Daughter | — | Illinois |
| 3 | Benjamin Werner | 58 | Head | Post Clerk | Wisconsin |
| 4 | Harriet Werner | 48 | Wife | — | Michigan |
| 5 | Virginia Markley | 17 | Step-daughter | — | Michigan |
| 6 | Merle Markley | 13 | Step-daughter | — | Michigan |
| 7 | June Markley | 11 | Step-daughter | — | Michigan |
| 8 | Lucretia Wills | 74 | Head | — | Iowa |
| 9 | Dorothy Bremer | 36 | Daughter | Filing Clerk | Illinois |
| 10 | Helen Wills | 38 | Daughter | Stenographer | Illinois |
| 11 | Jean Bremer | 15 | Daughter | — | Illinois |
| 12 | Mary Lou Bremer | 14 | Daughter | — | Illinois |
| 13 | Edward Kendall | 40 | Head | Adding Mach. Mechanic | Illinois |
| 14 | Mildred Kendall | 41 | Wife | — | Illinois |
| 15 | Joan Kendall | 14 | Daughter | — | Illinois |
| 16 | Shirley Kendall | 10 | Daughter | — | Illinois |
| 17 | Edward Jr. Kendall | 2 | Son | — | Illinois |
| 18 | Oscar Benson | 60 | Head | Wood Door Maker | Sweden |
| 19 | Hanna Benson | 56 | Wife | — | Sweden |
| 20 | Ruth Farr | 33 | Daughter | Secretary | Illinois |
| 21 | Celestine Obsterle | 77 | Head | — | France |
| 22 | Lillian Wilmot | 32 | Lodger | Clerk | Illinois |
| 23 | William Kavanaugh | 53 | Head | Helper | Irish Free State |
| 24 | Julia Kavanaugh | 52 | Wife | — | Illinois |
| 25 | Thos. H. Flynn | 31 | Brother-in-law | Policeman | Illinois |
| 26 | Patrick Mchugh | 43 | Head | Fire Capt. | Irish Free State |
| 27 | Mary Mchugh THIS PERSON | 39 | Wife | — | Irish Free State |
| 28 | Michael Mchugh | 17 | Son | — | Illinois |
| 29 | Martin Mchugh | 15 | Son | — | Illinois |
| 30 | Kevin Mchugh | 13 | Son | — | Illinois |
| 31 | Eugene Mchugh | 11 | Son | — | Illinois |
| 32 | Patricia Mchugh | 9 | Daughter | — | Illinois |
| 33 | Howard Mchugh | 6 | Son | — | Illinois |
| 34 | Frank Lucid | 54 | Head | Motorman | Irish Free State |
| 35 | Hanna Lucid | 56 | Wife | — | Irish Free State |
| 36 | Philip Lucid | 26 | Son | Clerk | Illinois |
| 37 | Patrick Ahern | 49 | Head | Delivery Clerk | Irish Free State |
| 38 | Mollie Kennedy | 46 | Cousin | Clerk | Irish Free State |
| 39 | Frank Radmberg | 75 | Head | Auto Inspector | Austria |
| 40 | Elizabeth Radmberg | 68 | Wife | — | Germany |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)