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Lois Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Michigan
Our Model Tree links this Lois Brown across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Michigan (XGBoost, ~Confirmed), with identified parents Nina & Vina — first a daughter (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Michigan |
| Surname | Brown |
| Given Name | Lois R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | KENOCKEE |
| 1935 Residence (County) | SAINT CLAIR |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Kenockee |
| Est. Birth Year | ~1917 |
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 Lois | Age | Birth yr |
|---|---|---|---|---|
| Lois Brown | Daughter | — | 23 | ~1917 |
| Bert Brown | Head | — | 55 | ~1885 |
| Frederic Brown | Son | — | 15 | ~1925 |
| Nina Brown | Spouse | — | 53 | ~1887 |
Census Appearances
1920
St Clair, …
Daughter, age 3
St Clair, Michigan · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lois R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Canada |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
St Clair, …
Daughter, age 13
St Clair, Michigan · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Canada English |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
St.-Clair-County, Michigan
Daughter, age 23
St.-Clair-County, Michigan · implied b. ~1917 — 4 household members
| Surname | Brown |
| Given Name | Lois R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | KENOCKEE |
| 1935 Residence (County) | SAINT CLAIR |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Lois Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Nina Brown (~0.92 confidence) and mother Vina Brown (~0.92 confidence) and father Bert Brown (~0.92 confidence) and father Bert Brown (~0.92 confidence) and father Bert Brown (~0.92 confidence) and mother Nina Brown (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Nina Brown
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Vina Brown
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Bert Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Bert Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Bert Brown
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Nina Brown
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lois Brown
Daughter · 1940 · age 23 · b. ~1917 · Michigan
★ You are viewing this record
Sibling
Frederic Brown
Sibling · 1940 · age 15
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 — St.-Clair-County, Michigan
Open full size
1940 US Federal Census — St.-Clair-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01815-00532)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Cameron | 38 | Son | Farm Helper | Michigan |
| 2 | Loretta Cameron | 34 | Daughter in law | — | Michigan |
| 3 | Patrick J. Cameron | 2 | Grandson | — | Michigan |
| 4 | Marietta Cameron | 0 | Granddaughter | — | Michigan |
| 5 | Lewis Biaczueire | Biaczueiro | 13 | Lodger | — | Michigan |
| 6 | Arthur Biaczueire | Biaczueiro | 10 | Lodger | — | Michigan |
| 7 | Clarence Q. Reid | 44 | Head | Farmer | Michigan |
| 8 | Edith M. Reid | 42 | Wife | — | Michigan |
| 9 | William Reid | 12 | Son | — | Michigan |
| 10 | John F. Q. Brennan | 60 | Head | Farmer | Michigan |
| 11 | Thomas A. Brennan | 26 | Son | Farm Helper | Michigan |
| 12 | Bert B. Brown | 55 | Head | Farmer | Michigan |
| 13 | Nina Brown | 53 | Wife | — | Michigan |
| 14 | Lois R. Brown THIS PERSON | 23 | Daughter | — | Michigan |
| 15 | Frederic Brown | 15 | Son | — | Michigan |
| 16 | William Stobbezt | Stobbert | 36 | Head | Loading Automobiles | Germany |
| 17 | Anna E. Stobbezt | Stobbert | 49 | Wife | — | Pennsylvania |
| 18 | Ernest Stobbezt | Stobbert | 9 | Son | — | Michigan |
| 19 | Anna D. Brennan | 48 | Head | — | Michigan |
| 20 | Lucille Brennan | 21 | Daughter | Filling Clerk | Michigan |
| 21 | Donna Brennan | 16 | Daughter | — | Michigan |
| 22 | Elizabeth Brennan | 14 | Daughter | — | Michigan |
| 23 | Leo Brennan | 12 | Son | — | Michigan |
| 24 | Robert Brennan | 7 | Son | — | Michigan |
| 25 | Duncan Hayes | 63 | Hired Hand | Farm Helper | England |
| 26 | Roy Acc. Wilson | 43 | Head | Farmer | Michigan |
| 27 | Hazel Wilson | 36 | Wife | — | Michigan |
| 28 | Martin D. Wilson | 15 | Son | — | Michigan |
| 29 | Mary E. Campbell | 72 | Mother in law | — | Michigan |
| 30 | Stanley B. Smith | 62 | Head | Farmer | Michigan |
| 31 | Nora Smith | 60 | Wife | — | Michigan |
| 32 | Mary Hell Q. Webb | 80 | Head | — | Michigan |
| 33 | Maud Mulcahy | 49 | Head | — | Michigan |
| 34 | Margaret A. Mulcahy | 17 | Daughter | — | Michigan |
| 35 | John D. Mulcahy | 14 | Son | — | Michigan |
| 36 | Thomas W. Mulcahy | 13 | Son | — | Michigan |
| 37 | Lillian Mulcahy | 12 | Daughter | — | Michigan |
| 38 | William H. Mulcahy | 7 | Son | — | Michigan |
| 39 | Daniel Donahue | 79 | Head | Farmer | Pennsylvania |
| 40 | Catherine Donahue | 68 | Wife | — | Michigan |
Pedigree Summary
Lois + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)