HC
Harry Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Leavenworth-County, Kansas
Our Model Tree links this Harry Campbell across the 1920, 1930 and 1940 US Censuses in Leavenworth-County, Kansas (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Leavenworth-County, Kansas |
| Surname | Campbell |
| Given Name | Harry M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Leavenworth city |
| 1935 Residence (County) | Leavenworth |
| Additional Details | |
| Occupation | Molder |
| Industry | Iron Foundry Manufacturing |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 425 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Molder |
| Township / Ward | Leavenworth 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Robert Campbell | Son | — | 16 | ~1924 |
| Harry Campbell | Head | — | 50 | ~1890 |
| Catherine Campbell | Spouse | — | 45 | ~1895 |
| Henry Campbell | Son | — | 17 | ~1923 |
Census Appearances
1920
Leavenworth, Kansas
Head, age 30
Leavenworth, Kansas · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Harry M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Montana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | Moulder |
| Industry | Machine Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Leavenworth, Kansas
Head, age 40
Leavenworth, Kansas · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Harlym |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Montana |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | molder |
| Industry | machine shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Veteran | No |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Leavenworth-County, Kansas
Head, age 50
Leavenworth-County, Kansas · implied b. ~1890 — 4 household members
| Surname | Campbell |
| Given Name | Harry M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Leavenworth city |
| 1935 Residence (County) | Leavenworth |
| Occupation | Molder |
| Industry | Iron Foundry Manufacturing |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 425 |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harry Campbell
Head · 1940 · age 50 · b. ~1890 · Kansas
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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 — Leavenworth-County, Kansas
Open full size
1940 US Federal Census — Leavenworth-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01240-00755)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wm French | 34 | Head | Laborer | Kansas |
| 42 | Irene M French | 37 | Daughter | Laborer | Kansas |
| 43 | Paul E French | 28 | Son | Laborer | Kansas |
| 44 | Mary M Alexander | 86 | Head | — | Missouri |
| 45 | Avery J Sweptston | 31 | Grandson | Laborer | Oklahoma |
| 46 | Mary E Sweptston | 30 | Daughter | — | Kansas |
| 47 | Harry M Campbell THIS PERSON | 50 | Head | Molder | Montana |
| 48 | Catherine T Campbell | 45 | Wife | — | Ireland |
| 49 | Henry P Campbell | 17 | Son | New Worker | Kansas |
| 50 | Robert A Campbell | 16 | Son | — | Kansas |
| 51 | Mamie Enrich | 61 | Head | — | Kansas |
| 52 | Imie Jones | 60 | Lodger | — | Virginia |
| 53 | Clyde A Payne | 51 | Head | Teamster | Kansas |
| 54 | Esther E Edison | 26 | Lodger | — | Kansas |
| 55 | Jessie Hill | 33 | Head | Maid | Georgia |
| 56 | Juanita E Hill | 10 | Daughter | — | Kansas |
| 57 | Josephine V Hill | 8 | Daughter | — | Kansas |
| 58 | Myra Dickson | 7 | Lodger | — | Kansas |
| 59 | — | None | — | — | — |
| 60 | Robert E Pike | 44 | Head | — | Kansas |
| 61 | Charles T Pike | 45 | Brother | Laborer | Kansas |
| 62 | Anna L Baker | 23 | Niece | — | Kansas |
| 63 | Herbert Carter | 50 | Head | Retired | Kansas |
| 64 | Mary E Carter | 39 | Wife | — | Kansas |
| 65 | Mary B Carter | 15 | Daughter | — | Kansas |
| 66 | Harry L Carter | 13 | Son | — | Kansas |
| 67 | Herbert L Carter | 12 | Son | — | Kansas |
| 68 | Oscar M Carter | 9 | Son | — | Kansas |
| 69 | William E Carter | 5 | Son | — | Kansas |
| 70 | Mary Gross | 40 | Head | — | Pennsylvania |
| 71 | Lulu Carter | 66 | Lodger | — | Kansas |
| 72 | George E Robbs | 46 | Lodger | Laborer | Kansas |
| 73 | Carl O English | 50 | Head | Janitor | Kansas |
| 74 | Loretta L English | 49 | Wife | — | Kansas |
| 75 | Arthur W English | 22 | Son | Cab Driver | Kansas |
| 76 | Carl J English | 18 | Son | New Worker | Kansas |
| 77 | Loretta L English | 6 | Daughter | — | Kansas |
| 78 | Lemuel G Robinson | 43 | Head | Laborer | New York |
| 79 | Helen L Robinson | 34 | Wife | — | Kansas |
| 80 | Betty L Robinson | 16 | Daughter | — | Kansas |
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)