HC
Harry Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Grundy-County, Missouri
Our Model Tree links this Harry Campbell across the 1930 and 1940 US Censuses in Grundy-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 10-person household.
Age 50
b. ~1890
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grundy-County, Missouri |
| Surname | Campbell |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Grundy |
| Additional Details | |
| Occupation | electrician |
| Industry | R.I. Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 314 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Electrician |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1890 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Floyd Campbell | Son | — | 12 | ~1928 |
| Mary Campbell | Spouse | — | 53 | ~1887 |
| Wynona Campbell | Daughter | — | 17 | ~1923 |
| Ella Campbell | Daughter | — | 8 | ~1932 |
| Lawrence Campbell | Son | — | 19 | ~1921 |
| Laura Campbell | Daughter | — | 19 | ~1921 |
| Albert Campbell | Son | — | 15 | ~1925 |
| Cynthia Campbell | Daughter | — | 10 | ~1930 |
| Richard Campbell | Son | — | 25 | ~1915 |
| Harry Campbell | Head | — | 50 | ~1890 |
Census Appearances
1930
Grundy, Missouri
Head, age 40
Grundy, Missouri · implied b. ~1890 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Harry H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 21 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Electrician |
| Industry | R.R. Shops |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 12.00 |
| Radio Set | R |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Grundy-County, Missouri
Head, age 50
Grundy-County, Missouri · implied b. ~1890 — 10 household members
| Surname | Campbell |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Grundy |
| Occupation | electrician |
| Industry | R.I. Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 314 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Harry Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Harry Campbell
Head · 1940 · age 50 · b. ~1890 · 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 — Grundy-County, Missouri
Open full size
1940 US Federal Census — Grundy-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02110-00320)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gilbert Layson | 6 | Son | — | Missouri |
| 2 | John William Layson | 4 | Son | — | Missouri |
| 3 | Wanda Mae Layson | 2 | Daughter | — | Missouri |
| 4 | Ray Shockley | 38 | Head | Own-Operate | Missouri |
| 5 | Bertha Shockley | 36 | Wife | Clerk | Missouri |
| 6 | Frank Barker | 79 | Father | — | Michigan |
| 7 | Emmett Dilley | 45 | Head | Conductor | Missouri |
| 8 | Nellie Dilley | 40 | Wife | — | Missouri |
| 9 | Franklin Dilley | 7 | Son | — | Missouri |
| 10 | Thelma Lee Dilley | 5 | Daughter | — | Missouri |
| 11 | Emmett Jr Dilley | 2 | Son | — | Missouri |
| 12 | Eliza Ellen Hart | 60 | Mother | — | Missouri |
| 13 | L. Edwin Moore | 79 | Head | — | Missouri |
| 14 | L. Frances Moore | 74 | Wife | — | Indiana |
| 15 | Harry Campbell THIS PERSON | 50 | Head | Electrician | Kentucky |
| 16 | Mary Campbell | 53 | Wife | — | Kansas |
| 17 | Richard Campbell | 25 | Son | Electrician | Iowa |
| 18 | Lawrence Campbell | 19 | Son | — | Minnesota |
| 19 | Laura May Campbell | 19 | Daughter | — | Minnesota |
| 20 | Wynona Campbell | 17 | Daughter | — | Minnesota |
| 21 | Albert Campbell | 15 | Son | — | Missouri |
| 22 | Cynthia Campbell | 10 | Daughter | — | Missouri |
| 23 | Floyd Campbell | 12 | Son | — | Missouri |
| 24 | Ella Campbell | 8 | Daughter | — | Missouri |
| 25 | Norris Boyer | 57 | Head | Switchman | Ohio |
| 26 | Nannie Boyer | 53 | Wife | — | Nebraska |
| 27 | Robert H. Marriott | 27 | Head | Laborer | Missouri |
| 28 | Ethel Marriott | 22 | Wife | — | Missouri |
| 29 | Leon Rentfrow | 26 | Head | Truck Driver | Missouri |
| 30 | Edna Rentfrow | 35 | Wife | — | Missouri |
| 31 | Norma Jane King | 12 | Daughter | — | Missouri |
| 32 | Thomas Edward King | 10 | Son | — | Missouri |
| 33 | Mattie Kirk | 84 | Head | — | Missouri |
| 34 | Carrie Drinkard | 48 | Daughter | — | Missouri |
| 35 | Russell Huff | 30 | Head | Manager | Missouri |
| 36 | Julia Huff | 23 | Wife | — | Indiana |
| 37 | Donald David Huff | 2 | Son | — | Missouri |
| 38 | Robert Goodloe | 25 | Head | Driver | Missouri |
| 39 | Dorothy Goodloe | 26 | Wife | — | Missouri |
| 40 | Jerry Goodloe | 6 | Son | — | 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)