MN
Mary Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nodaway-County, Missouri
Our Model Tree links this Mary Nicholson across the 1930 and 1940 US Censuses in Nodaway-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 6-person household.
Age 48
b. ~1892
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nodaway-County, Missouri |
| Surname | Nicholson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Nodaway |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Hopkins Township |
| Est. Birth Year | ~1892 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Viola Nicholson | Daughter | — | 16 | ~1924 |
| Russell Nicholson | Head | — | 43 | ~1897 |
| Irma Nicholson | Daughter | — | 11 | ~1929 |
| Mary Nicholson | Spouse | — | 48 | ~1892 |
| Lewis Nicholson | Son | — | 18 | ~1922 |
| Herbert Nicholson | Son | — | 15 | ~1925 |
Census Appearances
1930
Nodaway, Missouri
Spouse, age 38
Nodaway, Missouri · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 29 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Nodaway-County, Missouri
Spouse, age 48
Nodaway-County, Missouri · implied b. ~1892 — 6 household members
| Surname | Nicholson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Nodaway |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Nicholson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Nicholson
Spouse · 1940 · age 48 · b. ~1892 · Missouri
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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 — Nodaway-County, Missouri
Open full size
1940 US Federal Census — Nodaway-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02134-00134)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Merrill Hall | 18 | Daughter | — | Missouri |
| 42 | Eugene C. Hall | 15 | Grandson | — | Missouri |
| 43 | Wilda Clark | 13 | Granddaughter | — | Missouri |
| 44 | John Horn | 70 | Head | Farmer | Indiana |
| 45 | Reta Alpha Horn | 63 | Wife | — | Ohio |
| 46 | Alpha Ruth Horn | 16 | Daughter | — | Missouri |
| 47 | John Jr. Horn | 14 | Son | Farmer | Missouri |
| 48 | Lois Madge Horn | 19 | Daughter | — | Missouri |
| 49 | Woodrow Judd | 25 | Head | Farmer | Iowa |
| 50 | Ruby Judd | 30 | Wife | — | Missouri |
| 51 | Anna Welch | 63 | Head | — | Missouri |
| 52 | John Welch | 40 | Son | Farmer | Missouri |
| 53 | Harry Welch | 37 | Son | Farmer | Missouri |
| 54 | Ree H. Welch | 34 | Sister | — | Missouri |
| 55 | Charles Welch | 39 | Son | Farmer | Missouri |
| 56 | Ed Coleman | 62 | Head | Farmer | Missouri |
| 57 | Nellie Coleman | 59 | Wife | — | Missouri |
| 58 | Little Jackie Coleman | 6 | Grandson | — | Iowa |
| 59 | Robert Gilliland | 37 | Head | — | Missouri |
| 60 | Emma M. Gilliland | 34 | Wife | — | Missouri |
| 61 | John L. Bays | 69 | Head | Farmer | Indiana |
| 62 | Tillie Bays | 66 | Wife | — | Indiana |
| 63 | Earl Alexander | 38 | Head | Farmer | Missouri |
| 64 | Junie Alexander | 33 | Wife | — | Iowa |
| 65 | Lois Ann Alexander | 2 | Daughter | — | Missouri |
| 66 | W. W. Alexander | 69 | Head | Farmer | Iowa |
| 67 | A. E. Alexander | 64 | Wife | — | Missouri |
| 68 | Robert Alexander | 23 | Son | Farmer | Missouri |
| 69 | Russell Nicholson | 43 | Head | Farmer | Iowa |
| 70 | Mary Nicholson THIS PERSON | 48 | Wife | — | Missouri |
| 71 | Lewis Nicholson | 18 | Son | — | Missouri |
| 72 | Viola Nicholson | 16 | Daughter | — | Missouri |
| 73 | Herbert Nicholson | 15 | Son | Farmer | Missouri |
| 74 | Irma Nicholson | 11 | Daughter | — | Missouri |
| 75 | Ivan Burke | 30 | Head | Farm Labor | Iowa |
| 76 | Edna Burke | 24 | Wife | — | Missouri |
| 77 | Ronald Burke | 4 | Son | — | Missouri |
| 78 | Duane Lee Burke | 1 | Son | — | Iowa |
| 79 | W. H. Mcclear | 49 | Head | Farmer | Iowa |
| 80 | Oldie Mcclear | 44 | Wife | — | Missouri |
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)