JF
John Fuller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buchanan-County, Iowa
Our Model Tree links this John Fuller across the 1930 and 1940 US Censuses in Buchanan-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 11-person household.
Age 11
b. ~1929
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Buchanan-County, Iowa |
| Surname | Fuller |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Jesup town |
| 1935 Residence (County) | Buchanan |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Jesup Town |
| Est. Birth Year | ~1929 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marian Fuller | Daughter | — | 4 | ~1936 |
| Frances Fuller | Daughter | — | 13 | ~1927 |
| Dean Fuller | Daughter | — | 7 | ~1933 |
| Marjorie Fuller | Daughter | — | 15 | ~1925 |
| Omer Fuller | Head | — | 44 | ~1896 |
| Thomas Fuller | Son | — | ~1940 | |
| Donald Fuller | Son | — | 17 | ~1923 |
| John Fuller | Son | — | 11 | ~1929 |
| James Fuller | Son | — | 2 | ~1938 |
| Charles Fuller | Son | — | 19 | ~1921 |
| Mary Fuller | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Buchanan, Iowa
Son, age 1
Buchanan, Iowa · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fuller |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Buchanan-County, Iowa
Son, age 11
Buchanan-County, Iowa · implied b. ~1929 — 11 household members
| Surname | Fuller |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Jesup town |
| 1935 Residence (County) | Buchanan |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| 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 Fuller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Fuller
Son · 1940 · age 11 · b. ~1929 · Iowa
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Sibling
Marjorie Fuller
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dean Fuller
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Fuller
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Fuller
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Fuller
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Fuller
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Fuller
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marian Fuller
Sibling · 1940 · age 4
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 — Buchanan-County, Iowa
Open full size
1940 US Federal Census — Buchanan-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01142-00888)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Morgan S. Roberts | 12 | Son | — | Iowa |
| 42 | Elwood P. Searles | 71 | Head | — | Iowa |
| 43 | Elizabeth C. Searles | 67 | Wife | — | Iowa |
| 44 | Ernest M. Thompson | 32 | Head | Carpenter | Minnesota |
| 45 | Gladys Thompson | 28 | Wife | — | South Dakota |
| 46 | Robert Thompson | 8 | Son | — | South Dakota |
| 47 | Maurice Thompson | 6 | Son | — | South Dakota |
| 48 | James Thompson | 1 | Son | — | Iowa |
| 49 | John Wester | 49 | Head | Common Laborer | Iowa |
| 50 | Winifred Wester | 51 | Wife | — | Iowa |
| 51 | Claude J. Wester | 23 | Son | Clerk | Iowa |
| 52 | Mary Wester | 21 | Daughter | Stenographer | Iowa |
| 53 | Helen Connolly | 52 | Sister-in-law | Clerk | Iowa |
| 54 | Mary Connolly | 82 | Mother-in-law | — | Irish Free State |
| 55 | David Rev. Lonergan | 50 | Head | Clergyman | Irish Free State |
| 56 | Lena E. Wertz | 55 | Housekeeper | Housekeeper | Iowa |
| 57 | Francis Rev. Bradshaw | 39 | Lodger | Clergyman | Iowa |
| 58 | Omer B. Fuller | 44 | Head | Operator | Iowa |
| 59 | Mary A. Fuller | 40 | Wife | — | Iowa |
| 60 | Charles O. Fuller | 19 | Son | Assistant Truck Driver | Iowa |
| 61 | Donald L. Fuller | 17 | Son | — | Iowa |
| 62 | Marjorie Fuller | 15 | Daughter | — | Iowa |
| 63 | Frances Fuller | 13 | Daughter | — | Iowa |
| 64 | John J. Fuller THIS PERSON | 11 | Son | — | Iowa |
| 65 | Dean Fuller | 7 | Daughter | — | Iowa |
| 66 | Marian Fuller | 4 | Daughter | — | Iowa |
| 67 | James Fuller | 2 | Son | — | Iowa |
| 68 | Thomas Fuller | 0 | Son | — | Iowa |
| 69 | Austin D. Mcdonald | 25 | Head | Service Man | Iowa |
| 70 | Marguerite Mcdonald | 25 | Wife | — | Iowa |
| 71 | Janice Mcdonald | 2 | Daughter | — | Iowa |
| 72 | Frances Mcdonald | 1 | Daughter | — | Iowa |
| 73 | Mary Melody | 79 | Head | — | Irish Free State |
| 74 | Julia E. Melody | 43 | Daughter | Telephone Operator | Iowa |
| 75 | Margaret Wood | 5 | Granddaughter | — | Iowa |
| 76 | George E. Rolston | 65 | Head | — | Iowa |
| 77 | Hughie J. Fuller | 58 | Head | Farmer | Iowa |
| 78 | Flo Fuller | 54 | Wife | — | South Dakota |
| 79 | Lidie Lou Fuller | 7 | Granddaughter | — | Iowa |
| 80 | George A. Vogel | 69 | Head | — | Ohio |
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)