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Jack Moore — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Jack Moore across the 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 5-person household.
Age 11
b. ~1929
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Moore |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Jack Moore | Son | — | 11 | ~1929 |
| Lloyd Moore | Son | — | 19 | ~1921 |
| Hazel Moore | Spouse | — | 39 | ~1901 |
| Merl Moore | Daughter | — | 15 | ~1925 |
| Joseph Moore | Head | — | 40 | ~1900 |
Census Appearances
1930
Polk, Iowa
Son, age 1
Polk, Iowa · implied b. ~1929 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moore |
| Given Name | Jack S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Son, age 11
Polk-County, Iowa · implied b. ~1929 — 5 household members
| Surname | Moore |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Highest Grade | 5 |
| 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 Jack Moore across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Moore
Son · 1940 · age 11 · b. ~1929 · Iowa
★ You are viewing this record
Sibling
Merl Moore
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Moore
Sibling · 1940 · age 19
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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01196-00849)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jesse Mershon | 20 | Head | Wall Washer | Iowa |
| 42 | La Dell Mershon | 21 | Wife | — | Iowa |
| 43 | Joseph Moore | 40 | Head | Janitor | Iowa |
| 44 | Hazel Moore | 39 | Wife | — | Iowa |
| 45 | Lloyd Moore | 19 | Son | — | Iowa |
| 46 | Merl Moore | 15 | Daughter | — | Iowa |
| 47 | Jack Moore THIS PERSON | 11 | Son | — | Iowa |
| 48 | Anna Peterson | 46 | Head | — | Sweden |
| 49 | Richard Johnson | 65 | Brother | — | Iowa |
| 50 | Richard Laird | 22 | Head | Waiter | Iowa |
| 51 | Lena Laird | 22 | Wife | — | Iowa |
| 52 | George Burris | 27 | Head | Collector | Missouri |
| 53 | Genevieve Burris | 29 | Wife | — | Iowa |
| 54 | Harry Galinby | 27 | Head | Butcher | New Jersey |
| 55 | Esther Galinby | 27 | Wife | — | Iowa |
| 56 | Marvin Galinby | 2 | Son | — | Iowa |
| 57 | Jack Hellings | 38 | Head | Bookkeeper | Montana |
| 58 | Bertha Hellings | 30 | Wife | — | Iowa |
| 59 | Abraham Christensen | 45 | Head | — | Russia |
| 60 | Gail D. Christensen | 25 | Daughter | — | Iowa |
| 61 | Rose Christensen | 21 | Maid | Maid | Minnesota |
| 62 | William T. Gray | 32 | Head | Rug Salesman | Iowa |
| 63 | Elizabeth J. Gray | 27 | Wife | — | Iowa |
| 64 | Barbara J. Gray | 7 | Daughter | — | Iowa |
| 65 | William T. Gray | 2 | Son | — | Iowa |
| 66 | Hans Ockle | 62 | Head | Tailor | Norway |
| 67 | Elsie Ockle | 49 | Wife | — | Illinois |
| 68 | Harold Mason | 30 | Head | Chemist | Illinois |
| 69 | Elizabeth Hosford | 52 | Head | Laundress | Iowa |
| 70 | Vivian Hosford | 21 | Daughter | — | Iowa |
| 71 | Arthur Stader | 56 | Head | Foreman (Const) | Iowa |
| 72 | Clair Doolin | 43 | Head | Tool Maker | Iowa |
| 73 | Sylvia Doolin | 41 | Wife | — | Iowa |
| 74 | Clair Doolin | 21 | Son | Power App. | Iowa |
| 75 | Jack Doolin | 18 | Son | New Vendor | Iowa |
| 76 | Oscar Swartz | 68 | Lodger | Blacksmith | Ohio |
| 77 | Dan Eckert | 33 | Lodger | Attendant | Iowa |
| 78 | Pearl Eckert | 20 | Lodger | Waitress | Iowa |
| 79 | Jennie C. Tracy | 80 | Head | — | Pennsylvania |
| 80 | Blanche Stafford | 60 | Daughter | Secretary | 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)