JN
John Nolan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Boone-County, Iowa
Our Model Tree links this John Nolan across the 1920, 1930 and 1940 US Censuses in Boone-County, Iowa (XGBoost, ~Confirmed), with identified parents William & W — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Iowa |
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ogden |
| 1935 Residence (County) | Boone |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Ogden |
| Est. Birth Year | ~1918 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Phyllis Nolan | Daughter | — | 16 | ~1924 |
| W Nolan | Head | — | 47 | ~1893 |
| Anna Reimers | Other | — | 67 | ~1873 |
| William Nolan | Son | — | 14 | ~1926 |
| John Nolan | Son | — | 22 | ~1918 |
| Lillian Nolan | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Boone, Iowa
Other, age 2
Boone, Iowa · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | John Chas. |
| Relationship to Head | gd son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| 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 |
1930
Boone, Iowa
Son, age 12
Boone, Iowa · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nolan |
| Given Name | John C. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Boone-County, Iowa
Son, age 22
Boone-County, Iowa · implied b. ~1918 — 6 household members
| Surname | Nolan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ogden |
| 1935 Residence (County) | Boone |
| Class of Worker | 0 |
| Highest Grade | C 2 |
| 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 Nolan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Nolan (~0.92 confidence) and father W Nolan (~0.92 confidence) and mother Lillian Nolan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Nolan
b. ~1892
Source father
● Household
· direct · ~0.92
Father
W Nolan
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Lillian Nolan
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Nolan
Son · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
William Nolan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Nolan
Sibling · 1940 · age 16
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 — Boone-County, Iowa
Open full size
1940 US Federal Census — Boone-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01141-00873)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Durenne Tiller | 17 | Son | Truck Driver | Iowa |
| 42 | Kenneth Tiller | 15 | Son | — | Iowa |
| 43 | Richard Tiller | 13 | Son | — | Iowa |
| 44 | Dolores Tiller | 10 | Daughter | — | Iowa |
| 45 | Dave Harden | 68 | Head | — | Iowa |
| 46 | Phoebe Harden | 63 | Wife | — | Iowa |
| 47 | Thomas A. Sauterburg | 65 | Head | — | Iowa |
| 48 | Martin Rundberg | 55 | Head | Trucking | Iowa |
| 49 | Ellis Engleen | 58 | Head | Carpenter | Iowa |
| 50 | Julia Engleen | 56 | Wife | — | Iowa |
| 51 | Russell Isaacson | 23 | Head | Welder | Iowa |
| 52 | Ruth Isaacson | 21 | Wife | — | No Dakota |
| 53 | W. Earl Nolan | 47 | Head | Meat Cutter | Iowa |
| 54 | Lillian Nolan | 43 | Wife | — | Iowa |
| 55 | John Nolan THIS PERSON | 22 | Son | — | Iowa |
| 56 | Phyllis Nolan | 16 | Daughter | — | Iowa |
| 57 | William Earl Nolan | 14 | Son | — | Iowa |
| 58 | Anna Reimers | 67 | Mother-in-law | — | Iowa |
| 59 | Warren Ross | 58 | Head | — | Illinois |
| 60 | William Ross | 67 | Brother | — | Illinois |
| 61 | M. H. Pasacker | 79 | Head | — | Germany |
| 62 | Libbie Morrison | 52 | Servant | Housekeeper | Nebraska |
| 63 | Linn Miller | 34 | Head | Welder | Texas |
| 64 | Mary Miller | 34 | Wife | — | Louisiana |
| 65 | Ethel Miller | 59 | Mother | — | Missouri |
| 66 | Fred T. Keller | 33 | Head | Mechanic Repair-Work | Kansas |
| 67 | Hazel Keller | 31 | Wife | — | Kansas |
| 68 | Beverly K. Keller | 4 | Daughter | — | Kansas |
| 69 | John Peters | 64 | Head | Farming | Iowa |
| 70 | Sophia Peters | 61 | Wife | — | Iowa |
| 71 | John Morris | 46 | Head | Carpenter | Iowa |
| 72 | Drake Morris | 48 | Wife | — | Iowa |
| 73 | Ruth Morris | 11 | Granddaughter | — | Iowa |
| 74 | Allen Hibbard | 54 | Head | Manager | Iowa |
| 75 | Anna Hibbard | 49 | Wife | — | Iowa |
| 76 | Archie Kelley | 39 | Head | Coal Miner | Iowa |
| 77 | Irene Kelley | 36 | Wife | — | Iowa |
| 78 | Archie Jr. Kelley | 17 | Son | — | Iowa |
| 79 | Colleen Kelley | 15 | Daughter | — | Iowa |
| 80 | James Hamilton | 62 | Head | Farming | Iowa |
Pedigree Summary
John + 2 siblings
Gen 1 · 3 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)