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John Mchugh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Olmsted-County, Minnesota
Our Model Tree links this John Mchugh across the 1920, 1930 and 1940 US Censuses in Olmsted-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 3-person household.
Age 68
b. ~1872
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Olmsted-County, Minnesota |
| Surname | McHugh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rochester |
| 1935 Residence (County) | Olmsted |
| Additional Details | |
| Occupation | Blacksmith |
| Industry | Blacksmithing |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 302 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Blacksmith |
| Township / Ward | Rochester |
| Est. Birth Year | ~1872 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mchugh | Head | — | 68 | ~1872 |
| James Mchugh | Son | — | 31 | ~1909 |
| Mary Mchugh | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Olmsted, Minnesota
Other, age 47
Olmsted, Minnesota · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | John |
| Relationship to Head | son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | New York |
| Mother's Birthplace | Minnesota |
| Occupation | Blacksmith |
| Industry | Shop |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Olmsted, Minnesota
Spouse, age 57
Olmsted, Minnesota · implied b. ~1873 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McHugh |
| Given Name | John M. |
| Relationship to Head | Husband |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 26 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Minnesota |
| Occupation | Blacksmith |
| Industry | Own shop |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Olmsted-County, Minnesota
Head, age 68
Olmsted-County, Minnesota · implied b. ~1872 — 3 household members
| Surname | McHugh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rochester |
| 1935 Residence (County) | Olmsted |
| Occupation | Blacksmith |
| Industry | Blacksmithing |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 302 |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 John Mchugh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mchugh
Head · 1940 · age 68 · b. ~1872 · Minnesota
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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 — Olmsted-County, Minnesota
Open full size
1940 US Federal Census — Olmsted-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01944-00422)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Virginia C. O. Ramms | 53 | Wife | Elevator Operator | Minnesota |
| 42 | Melvin Rogers | 24 | Head | Mechanic | Minnesota |
| 43 | Ruth Rogers | 24 | Wife | Render | Illinois |
| 44 | James Mullen | 43 | Head | Bartender | Eire |
| 45 | Irma Mullen | 22 | Wife | — | Minnesota |
| 46 | Ella S. Bailey | 57 | Head | — | Minnesota |
| 47 | Clarence Bailey | 44 | Son | Janitor | Minnesota |
| 48 | Francis Bailey | 30 | Son | Salesman | Minnesota |
| 49 | Clifford Bailey | 28 | Son | Worker | Minnesota |
| 50 | Ira Barrett | 19 | Head | Roomer | Minnesota |
| 51 | John Mchugh THIS PERSON | 68 | Head | Blacksmith | Minnesota |
| 52 | Mary A. Mchugh | 61 | Wife | — | Minnesota |
| 53 | James K. Mchugh | 31 | Son | Cashier | Minnesota |
| 54 | Edward J. Dooley | 50 | Head | Engineer | Minnesota |
| 55 | Mary Jane Dooley | 19 | Daughter | — | Minnesota |
| 56 | Elaine H. Dooley | 17 | Daughter | — | Minnesota |
| 57 | Edward Dooley | 14 | Son | — | Minnesota |
| 58 | Sara J. Bigger | 67 | Lodger | — | Minnesota |
| 59 | Alvin Metz | 60 | Head | Jeweler | Austria |
| 60 | Mary Metz | 43 | Wife | — | Austria |
| 61 | Albie Metz | 14 | Son | — | Illinois |
| 62 | Dolores Metz | 12 | Daughter | — | Illinois |
| 63 | Edward La Beach | 25 | Son-in-law | Jeweler | North Dakota |
| 64 | Edith La Beach | 25 | Daughter | — | Illinois |
| 65 | Mary Ann La Beach | 5 | Daughter | — | Illinois |
| 66 | Edith La Beach | 3 | Daughter | — | Illinois |
| 67 | Jacob Thornell | 54 | Head | Undertaker | Norway |
| 68 | Nancy Thornell | 54 | Wife | — | Norway |
| 69 | Nancy Mensing | 6 | Granddaughter | — | Minnesota |
| 70 | Edward Edwards | 45 | Head | — | Minnesota |
| 71 | Henry Edwards | 13 | Son | — | New York |
| 72 | Rankin Mccroshie | 62 | Lodger | — | Iowa |
| 73 | William H. Lemm | 60 | Head | Painter | Minnesota |
| 74 | Lila Bell Lemm | 30 | Wife | — | Minnesota |
| 75 | Leo Huey | 42 | Head | Proprietor | Iowa |
| 76 | Effie Huey | 41 | Wife | — | Minnesota |
| 77 | John P. Loggins | 31 | Head | Clerk | Minnesota |
| 78 | Victoria Loggins | 26 | Wife | Bookkeeper | Minnesota |
| 79 | Lena Darrell | 58 | Head | Maid | South Dakota |
| 80 | Etta Rose | 69 | Head | Nurse | Wisconsin |
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)