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Mary Mchugh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harrison-County, Iowa
Our Model Tree links this Mary Mchugh across the 1930 and 1940 US Censuses in Harrison-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Iowa |
| Surname | McHugh |
| Given Name | Mary Ellen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Allen Twp |
| 1935 Residence (County) | Harrison |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Allen Twp |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gail Mchugh | Son | — | 16 | ~1924 |
| Pete Mchugh | Head | — | 48 | ~1892 |
| Agnes Mchugh | Daughter | — | 14 | ~1926 |
| Herbert Mchugh | Son | — | 6 | ~1934 |
| Dean Mchugh | Son | — | 17 | ~1923 |
| Dale Mchugh | Son | — | 20 | ~1920 |
| Mary Mchugh | Daughter | — | 10 | ~1930 |
| Rosella Mchugh | Daughter | — | 19 | ~1921 |
| Esta Mchugh | Spouse | — | 47 | ~1893 |
| Margaret Mchugh | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Harrison, Iowa
Daughter, age
Harrison, Iowa · implied b. ~1930 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Harrison-County, Iowa
Daughter, age 10
Harrison-County, Iowa · implied b. ~1930 — 10 household members
| Surname | McHugh |
| Given Name | Mary Ellen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Allen Twp |
| 1935 Residence (County) | Harrison |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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.
Show:
This person
Anchor record
Mary Mchugh
Daughter · 1940 · age 10 · b. ~1930 · Iowa
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Sibling
Rosella Mchugh
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gail Mchugh
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mchugh
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Mchugh
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dean Mchugh
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Mchugh
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Mchugh
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Harrison-County, Iowa
Open full size
1940 US Federal Census — Harrison-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-00013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Error Waldemer | None | — | — | — |
| 42 | Chas Kucks | 40 | Head | Farmer | Iowa |
| 43 | Lillian Kucks | 34 | Wife | None | Iowa |
| 44 | Charlene Kucks | 12 | daughter | — | Iowa |
| 45 | Norma Jean Kucks | 7 | daughter | — | Iowa |
| 46 | E. Christensen | 49 | Head | Farmer | Iowa |
| 47 | Emma Christensen | 50 | wife | None | Iowa |
| 48 | Nonni Christensen | 18 | daughter | None | Iowa |
| 49 | Ward Christensen | 16 | son | — | Iowa |
| 50 | John Baker | 25 | Head | Farmer | Iowa |
| 51 | Bernice Baker | 20 | wife | None | Iowa |
| 52 | Marilyn Baker | 3 | daughter | — | Iowa |
| 53 | Loretta Baker | 2 | daughter | — | Iowa |
| 54 | Janette Baker | 0 | daughter | — | Iowa |
| 55 | Pete Mchugh | 48 | Head | Farmer | Iowa |
| 56 | Esta Mchugh | 47 | wife | None | Iowa |
| 57 | Dale Mchugh | 20 | son | Farmer | Iowa |
| 58 | Rosella Mchugh | 19 | daughter | School Teacher | Iowa |
| 59 | Dean Mchugh | 17 | son | Farmer | Iowa |
| 60 | Gail Mchugh | 16 | son | — | Iowa |
| 61 | Agnes Mchugh | 14 | daughter | — | Iowa |
| 62 | Margaret Jane Mchugh | 12 | daughter | — | Iowa |
| 63 | Mary Ellen Mchugh THIS PERSON | 10 | daughter | — | Iowa |
| 64 | Herbert Mchugh | 6 | son | — | Iowa |
| 65 | James F Caron | 69 | Head | Farmer | Indiana |
| 66 | Minnie Caron | 53 | wife | None | Iowa |
| 67 | Marion Caron | 25 | son | Farmer | Iowa |
| 68 | Faye Caron | 21 | son | Farmer | Iowa |
| 69 | Merrill Caron | 18 | son | Farmer | Iowa |
| 70 | Wilbur Caron | 15 | son | Farmer | Iowa |
| 71 | D. L. Caron | 70 | Head | Farmer | Indiana |
| 72 | Lucy Caron | 74 | sister | None | Indiana |
| 73 | Ace Lee | 57 | Head | Farmer | Oregon |
| 74 | Hazel Lee | 50 | wife | None | Iowa |
| 75 | Melvin Green | 20 | Head | Farmer | Iowa |
| 76 | Margaret Green | 20 | wife | None | Iowa |
| 77 | Harry Young | 69 | lodger | None | Iowa |
| 78 | Charles Dexter | 57 | Head | Farmer | Iowa |
| 79 | Mary Dexter | 56 | wife | None | Iowa |
| 80 | Orville E Parks | 40 | Head | Farmer | Iowa |
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)