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Mary Mcmillan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Merrick-County, Nebraska
Our Model Tree links this Mary Mcmillan across the 1920, 1930 and 1940 US Censuses in Merrick-County, Nebraska (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Female
Spouse
Born: Nebraska
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Merrick-County, Nebraska |
| Surname | McMillan |
| Given Name | Mary L. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Chapman Township |
| 1935 Residence (County) | Merrick |
| Additional Details | |
| Hours Worked | 40 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Township / Ward | Chapman Township |
| Est. Birth Year | ~1888 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Dale Mcmillan | Son | — | 22 | ~1918 |
| Mary Mcmillan | Spouse | — | 52 | ~1888 |
| Hubert Mcmillan | Head | — | 55 | ~1885 |
| Jean Mcmillan | Daughter | — | 16 | ~1924 |
Census Appearances
1920
Merrick, Nebraska
Spouse, age 32
Merrick, Nebraska · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMillan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
Merrick, Nebraska
Spouse, age 42
Merrick, Nebraska · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMillan |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Nebraska |
| Age at First Marriage | 25 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Merrick-County, Nebraska
Spouse, age 52
Merrick-County, Nebraska · implied b. ~1888 — 4 household members
| Surname | McMillan |
| Given Name | Mary L. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Nebraska |
| 1935 Residence (City) | Chapman Township |
| 1935 Residence (County) | Merrick |
| Hours Worked | 40 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Mcmillan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mcmillan
Spouse · 1940 · age 52 · b. ~1888 · Nebraska
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Merrick-County, Nebraska
Open full size
1940 US Federal Census — Merrick-County, Nebraska
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02257-00819)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patterson Spears | 29 | wife | — | Kansas |
| 2 | Clyde D. Mcmahon | 49 | head | Farmer | Nebraska |
| 3 | Gertrude E. Mcmahon | 45 | wife | — | Nebraska |
| 4 | Garrel C. Mcmahon | 20 | son | Farm Laborer | Nebraska |
| 5 | Dale J. Mcmahon | 17 | son | — | Nebraska |
| 6 | Gertrude M. Mcmahon | 9 | daughter | — | Nebraska |
| 7 | Kathleen S. Mcmahon | 8 | daughter | — | Nebraska |
| 8 | Betty Ann Mcmahon | 7 | daughter | — | Nebraska |
| 9 | Ora Cheyney | 60 | head | Operator | Ohio |
| 10 | Bessie Cheyney | 60 | wife | — | Iowa |
| 11 | David G. Harris | 26 | Hired hand | Attendant | Nebraska |
| 12 | Gilbert D. Cheyney | 46 | head | Truck Driver | Nebraska |
| 13 | Carrie I. Cheyney | 41 | wife | — | Ohio |
| 14 | Viola Cheyney | 16 | daughter | — | Nebraska |
| 15 | Marvin Cheyney | 14 | son | — | Nebraska |
| 16 | Vinita Cheyney | 12 | daughter | — | Nebraska |
| 17 | Melvin Cheyney | 4 | son | — | Nebraska |
| 18 | Mavis Cheyney | 1 | daughter | — | Nebraska |
| 19 | Leroy Manning | 36 | head | Farmer | Illinois |
| 20 | Laya Manning | 36 | wife | — | Nebraska |
| 21 | Lucille M. Manning | 13 | daughter | — | Nebraska |
| 22 | Rosemary Manning | 7 | daughter | — | Nebraska |
| 23 | Donald Green | 11 | Nephew | — | Nebraska |
| 24 | Leonard Smith | 19 | Hired hand | Farm Laborer | Nebraska |
| 25 | Allie J. Powers | 54 | head | Farmer | Nebraska |
| 26 | Rose Powers | 47 | wife | — | Nebraska |
| 27 | Richard Powers | 25 | son | Farm Laborer | Nebraska |
| 28 | Delores Powers | 23 | daughter | — | Nebraska |
| 29 | Dorthy Powers | 21 | daughter | — | Nebraska |
| 30 | Charlotte Powers | 19 | daughter | — | Nebraska |
| 31 | Robert Powers | 18 | son | Farm Laborer | Nebraska |
| 32 | Margaret Powers | 16 | daughter | — | Nebraska |
| 33 | Orven Powers | 12 | son | — | Nebraska |
| 34 | Agnes Powers | 10 | daughter | — | Nebraska |
| 35 | Theresa Powers | 9 | daughter | — | Nebraska |
| 36 | Phylis Powers | 6 | daughter | — | Nebraska |
| 37 | Hubert W. Mcmillan | 55 | head | Farmer | Wisconsin |
| 38 | Mary L. Mcmillan THIS PERSON | 52 | wife | — | Nebraska |
| 39 | Dale Mcmillan | 22 | son | Farm Laborer | Nebraska |
| 40 | Jean Mcmillan | 16 | daughter | — | 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)