MH
Mary Harmon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, Nebraska
Our Model Tree links this Mary Harmon across the 1910, 1920, 1930 and 1940 US Censuses in Cass-County, Nebraska (XGBoost, ~Confirmed) — first a spouse (b.~1866), then head of a 3-person household.
Age 74
b. ~1866
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Nebraska |
| Surname | Harmon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | 5 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | 5 |
| Township / Ward | Weeping Water Precinct |
| Est. Birth Year | ~1866 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Albert Harmon | Head | — | 80 | ~1860 |
| Don Harmon | Son | — | 36 | ~1904 |
| Mary Harmon | Spouse | — | 74 | ~1866 |
Census Appearances
1910
Cass, Nebraska
Spouse, age 44
Cass, Nebraska · implied b. ~1866 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Years Married | 31 |
| Children Born | 6 |
| Children Living | 6 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1920
Cass, Nebraska
Spouse, age 53
Cass, Nebraska · implied b. ~1867 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Cass, Nebraska
Other, age 64
Cass, Nebraska · implied b. ~1866 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 15 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Cass-County, Nebraska
Spouse, age 74
Cass-County, Nebraska · implied b. ~1866 — 3 household members
| Surname | Harmon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (County) | Cass |
| Occupation | 5 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Harmon across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Harmon
Spouse · 1940 · age 74 · b. ~1866 · Nebraska
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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 — Cass-County, Nebraska
Open full size
1940 US Federal Census — Cass-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02239-00922)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Delores Meyer | 4 | Daughter | — | Nebraska |
| 42 | Josephine Meyer | 2 | Daughter | — | Nebraska |
| 43 | Albert Harmon | 80 | Head | 7 | Ohio |
| 44 | Mary Harmon THIS PERSON | 74 | Wife | 5 | Kentucky |
| 45 | Don Harmon | 36 | Son | 8 | Nebraska |
| 46 | Harry Jacobson | 32 | Head | Farmer | Nebraska |
| 47 | Orelia Jacobson | 35 | Wife | 5 | Nebraska |
| 48 | James George | 64 | Head | Filling Station Operator | Missouri |
| 49 | Laura George | 63 | Wife | 5 | Missouri |
| 50 | Oswald Baier | 27 | Head | Farmer | Nebraska |
| 51 | Letha Baier | 23 | Wife | 5 | Nebraska |
| 52 | Martin Nielsen | 63 | Head | Farming | Denmark |
| 53 | Margaret Nielsen | 63 | Wife | — | Denmark |
| 54 | Rasmus Jensen | 52 | Head | Farming | Denmark |
| 55 | Doris Jensen | 28 | Wife | 5 | Nebraska |
| 56 | Pauline Jensen | 5 | Daughter | — | Nebraska |
| 57 | Eunice Jensen | 3 | Daughter | — | Nebraska |
| 58 | Louis Gothier | 41 | Head | 72 | Iowa |
| 59 | Mary Gothier | 40 | Wife | H | Nebraska |
| 60 | Madonna Gothier | 16 | Daughter | S | South Dakota |
| 61 | Marvin Gothier | 13 | Son | — | Nebraska |
| 62 | Emmet Ceder | 66 | Head | Farmer | Iowa |
| 63 | John Gudman | 39 | Head | Farming | Germany |
| 64 | Mary Gudman | 36 | Wife | 5 | Nebraska |
| 65 | Norma Gudman | 14 | Daughter | — | Nebraska |
| 66 | Ralph Gudman | 11 | Son | — | Nebraska |
| 67 | Leroy Gudman | 10 | Son | — | Nebraska |
| 68 | Delores Gudman | 8 | Daughter | — | Nebraska |
| 69 | Wilmer Gudman | 5 | Son | — | Nebraska |
| 70 | Fred Carsten | 53 | Head | Legislator | Nebraska |
| 71 | Nancy Carsten | 52 | Wife | 5 | Nebraska |
| 72 | Ernest Haveman | 42 | Head | Farmer | Nebraska |
| 73 | Meta Haveman | 36 | Wife | 5 | Nebraska |
| 74 | Leroy Haveman | 13 | Son | — | Nebraska |
| 75 | Leonard Haveman | 12 | Son | — | Nebraska |
| 76 | Harold Blaikie | 47 | Head | Farmer | New York |
| 77 | Sophie Blaikie | 49 | Wife | 5 | Nebraska |
| 78 | Elton Blaikie | 12 | Son | — | Nebraska |
| 79 | Mary Blaikie | 82 | Mother | 7 | New York |
| 80 | Herman Wegener | 53 | Head | Farmer | Nebraska |
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)