JH
John Harrison — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Iowa
Our Model Tree links this John Harrison across the 1930 and 1940 US Censuses in Marion-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Iowa |
| Surname | Harrison |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Liberty Twp |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Class of Worker | NP |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Liberty Twp |
| Est. Birth Year | ~1926 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Peggy Harrison | Daughter | — | 1 | ~1939 |
| Betty Harrison | Daughter | — | 16 | ~1924 |
| Amy Harrison | Daughter | — | 6 | ~1934 |
| Emma Harrison | Daughter | — | 8 | ~1932 |
| George Harrison | Head | — | 41 | ~1899 |
| George Harrison | Son | — | 9 | ~1931 |
| James Harrison | Son | — | 12 | ~1928 |
| John Harrison | Son | — | 14 | ~1926 |
| Mary Harrison | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Marion, Iowa
Son, age 4
Marion, Iowa · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrison |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Marion-County, Iowa
Son, age 14
Marion-County, Iowa · implied b. ~1926 — 9 household members
| Surname | Harrison |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Liberty Twp |
| 1935 Residence (County) | Marion |
| Class of Worker | NP |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 John Harrison across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Harrison
Son · 1940 · age 14 · b. ~1926 · Iowa
★ You are viewing this record
Sibling
Amy Harrison
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Harrison
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Harrison
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peggy Harrison
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Harrison
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Harrison
Sibling · 1940 · age 8
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 — Marion-County, Iowa
Open full size
1940 US Federal Census — Marion-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01181-00635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Richard Harrison | 16 | Son | — | Iowa |
| 2 | Donald Harrison | 14 | Son | — | Iowa |
| 3 | Barbara Jean Harrison | 10 | Daughter | — | Iowa |
| 4 | Margaret D. Harrison | 8 | Daughter | — | Iowa |
| 5 | David Harrison | 3 | Son | — | Iowa |
| 6 | Beverly Harrison | 2 | Daughter | — | Iowa |
| 7 | George Harrison | 41 | Head | Farmer | Iowa |
| 8 | Mary Harrison | 37 | Wife | Housewife | Illinois |
| 9 | Betty Jane Harrison | 16 | Daughter | — | Iowa |
| 10 | John Harrison THIS PERSON | 14 | Son | — | Iowa |
| 11 | James Harrison | 12 | Son | — | Iowa |
| 12 | George Roy Harrison | 9 | Son | — | Iowa |
| 13 | Emma Harrison | 8 | Daughter | — | Iowa |
| 14 | Amy Harrison | 6 | Daughter | — | Iowa |
| 15 | Peggy Harrison | 1 | Daughter | — | Iowa |
| 16 | Al Parker | 35 | Head | Farm Laborer | Iowa |
| 17 | Pearl Parker | 18 | Wife | Housewife | Iowa |
| 18 | Walter Johnson | 44 | Head | Farmer | Iowa |
| 19 | Lois B. Johnson | 40 | Wife | Housewife | Iowa |
| 20 | Loren Johnson | 16 | Son | — | Iowa |
| 21 | Mary Ann Johnson | 14 | Daughter | — | Iowa |
| 22 | Martin T. Johnson | 10 | Son | — | Iowa |
| 23 | Alan Johnson | 6 | Son | — | Iowa |
| 24 | Morris Lee | 32 | Head | Coal Miner | Iowa |
| 25 | Erin Lee | 23 | Wife | Housewife | Utah |
| 26 | Betty Jean Lee | 4 | Daughter | — | Iowa |
| 27 | Robert Carl Lee | 2 | Son | — | Iowa |
| 28 | John Bigelow | 26 | Head | Farm Hand | Iowa |
| 29 | Dorothy Bigelow | 21 | Wife | Housewife | Iowa |
| 30 | Mary J. Bigelow | 1 | Daughter | — | Iowa |
| 31 | William Waterloo | 30 | Head | Farm Hand | Iowa |
| 32 | Hazel L. Waterloo | 34 | Wife | Housewife | Iowa |
| 33 | William Waterloo | 3 | Son | — | Iowa |
| 34 | Barbara A. Waterloo | 1 | Daughter | — | Iowa |
| 35 | Archie Little | 45 | Head | Wpa | Iowa |
| 36 | Edna Little | 37 | Wife | Housewife | Missouri |
| 37 | Irene Little | 17 | Daughter | — | Iowa |
| 38 | Glen Little | 12 | Son | — | Iowa |
| 39 | Allene Little | 8 | Daughter | — | Iowa |
| 40 | Delmar Little | 3 | Son | — | Iowa |
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)