MC
Mary Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jackson-County, Missouri
Our Model Tree links this Mary Campbell across the 1920, 1930 and 1940 US Censuses in Jackson-County, Missouri (XGBoost, ~Confirmed), with identified parents James & James — first a daughter (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Missouri |
| Surname | Campbell |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Additional Details | |
| Occupation | Turn in Girl |
| Industry | Box Factory |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Turn In Girl |
| Township / Ward | Kansas City |
| Est. Birth Year | ~1913 |
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 |
|---|---|---|---|---|
| Mary Campbell | Daughter | — | 27 | ~1913 |
| Holmes Campbell | Head | — | 49 | ~1891 |
| William Campbell | Son | — | 22 | ~1918 |
| Harry Campbell | Son | — | 17 | ~1923 |
| Robert Campbell | Son | — | 20 | ~1920 |
| Mary Campbell | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Jackson, Missouri
Daughter, age 7
Jackson, Missouri · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Jackson, Missouri
Daughter, age 17
Jackson, Missouri · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Jackson-County, Missouri
Daughter, age 27
Jackson-County, Missouri · implied b. ~1913 — 6 household members
| Surname | Campbell |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Occupation | Turn in Girl |
| Industry | Box Factory |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| 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 Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Campbell (~0.92 confidence) and father James Campbell (~0.92 confidence) and father Holmes Campbell (~0.92 confidence) and mother Mary Campbell (~0.92 confidence) and mother Mary Campbell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Campbell
b. ~1877
Source father
● Household
· direct · ~0.92
Father
James Campbell
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Holmes Campbell
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Mary Campbell
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Campbell
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Campbell
Daughter · 1940 · age 27 · b. ~1913 · Missouri
★ You are viewing this record
Sibling
Harry Campbell
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Campbell
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Campbell
Sibling · 1940 · age 22
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 — Jackson-County, Missouri
Open full size
1940 US Federal Census — Jackson-County, Missouri
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02180-00047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Virgil Case | 31 | Head | Buffer | Missouri |
| 3 | Ruby Case | 31 | Wife | — | Missouri |
| 4 | "Creed ""Ab""" Case | 15 | Son | — | Missouri |
| 5 | William Shipman | 46 | Head | Mill Wright | Missouri |
| 6 | Mary Shipman | 40 | Wife | — | Missouri |
| 7 | Alexander Adamine | 65 | Head | — | Switzerland |
| 8 | Lilly Adamine | 57 | Wife | — | Illinois |
| 9 | Frank Terrill | 47 | Head | Clerk | Missouri |
| 10 | Flora Terrill | 44 | Wife | — | Tennessee |
| 11 | Ora Chaffin | 70 | Mother-in-law | — | Tennessee |
| 12 | Eugene Gabbert | 32 | Head | Polisher | Missouri |
| 13 | Mildred Gabbert | 27 | Wife | — | Missouri |
| 14 | Judith Rae Gabbert | 4 | Daughter | — | Missouri |
| 15 | Carol Jean Gabbert | 3 | Daughter | — | Missouri |
| 16 | Robert D. Walsh | 44 | Head | Carpenter | Texas |
| 17 | Hazel Walsh | 38 | Wife | — | Kansas |
| 18 | Robert Jr. Walsh | 18 | Son | Laborer | Kansas |
| 19 | Lula Mae Walsh | 17 | Daughter | Maid | Kansas |
| 20 | Evelyn Walsh | 16 | Daughter | Helper In Kitchen | Kansas |
| 21 | Marjorie Walsh | 14 | Daughter | — | Missouri |
| 22 | Billy Jean Walsh | 9 | Daughter | — | Missouri |
| 23 | Mary Ruth Walsh | 8 | Daughter | — | Missouri |
| 24 | Ferd W. Skouby | 38 | Head | Order Taker | Missouri |
| 25 | Cora Skouby | 38 | Wife | — | Missouri |
| 26 | Betty Jean Skouby | 7 | Daughter | — | Missouri |
| 27 | Joseph E. Morris | 40 | Head | Clerk | Kansas |
| 28 | Lora Morris | 36 | Wife | — | Oklahoma |
| 29 | Ardell Johns | 21 | Head | Stenographer | Texas |
| 30 | Robert R. Shahl | 38 | Head | Enumerator | Missouri |
| 31 | Mada G. Shahl | 67 | Wife | — | Missouri |
| 32 | Eva Oliver | 54 | Head | — | Missouri |
| 33 | Holmes Campbell | 49 | Head | Driller | Missouri |
| 34 | Mary E. Campbell | 48 | Wife | — | Missouri |
| 35 | Mary E. Campbell THIS PERSON | 27 | Daughter | Turn In Girl | Missouri |
| 36 | William T. Campbell | 22 | Son | Receiving Clerk | Missouri |
| 37 | Robert Campbell | 20 | Son | Laborer | Missouri |
| 38 | Harry Campbell | 17 | Son | — | Missouri |
| 39 | Ernest J. Henneberger | 39 | Head | Landscaping | Missouri |
| 40 | Emma Henneberger | 41 | Wife | — | Louisiana |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 5 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)