TG
Thomas Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wapello-County, Iowa
Our Model Tree links this Thomas Gray across the 1920, 1930 and 1940 US Censuses in Wapello-County, Iowa (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a head (b.~1918), then head of a 2-person household.
Age 22
b. ~1918
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wapello-County, Iowa |
| Surname | Gray |
| Given Name | Thomas A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Additional Details | |
| Occupation | Smoked meat |
| Industry | Meat packing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Smoked Meat |
| Township / Ward | Ottumwa City |
| 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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Thomas Gray | Head | — | 22 | ~1918 |
| Grace Gray | Daughter | — | 19 | ~1921 |
Census Appearances
1920
Wapello, Iowa
Son, age 2
Wapello, Iowa · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Wapello, Iowa
Son, age 12
Wapello, Iowa · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Wapello-County, Iowa
Head, age 22
Wapello-County, Iowa · implied b. ~1918 — 2 household members
| Surname | Gray |
| Given Name | Thomas A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Ottumwa City |
| 1935 Residence (County) | Wapello County |
| Occupation | Smoked meat |
| Industry | Meat packing |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 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 Thomas Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Gray (~0.92 confidence) and mother Mary Gray (~0.92 confidence) and father Lewis Gray (~0.92 confidence) and father Levi Gray (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Gray
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Gray
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Lewis Gray
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Levi Gray
b. ~1884
Source father
● Household
· direct · ~0.92
This person
Anchor record
Thomas Gray
Head · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wapello-County, Iowa
Open full size
1940 US Federal Census — Wapello-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01209-00236)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas A Gray THIS PERSON | 22 | Head | Smoked Meat | Iowa |
| 42 | Grace L Gray | 19 | Daughter | Operator | Iowa |
| 43 | William R Hilkimen | 34 | Head | Truck Driver | Missouri |
| 44 | Grace H Hilkimen | 32 | Wife | Maid | Iowa |
| 45 | Lyman H Hilkimen | 12 | Son | — | Iowa |
| 46 | William Jr Hilkimen | 8 | Son | — | Iowa |
| 47 | James J Hilkimen | 3 | Son | — | Iowa |
| 48 | James Moffet | 31 | Roomer | Service Man | Iowa |
| 49 | George H Maltby | 68 | Head | Janitor | Illinois |
| 50 | Emma M A Maltby | 58 | Wife | Housewife | New Hampshire |
| 51 | Eva M Parks | 36 | Daughter | Housework | Iowa |
| 52 | Nellie A D Guthrie | 79 | Head | Housewife | Pennsylvania |
| 53 | Nora Guthrie | 71 | Daughter | Housewife | Illinois |
| 54 | Catherine M Rama | 79 | Sister in law | Housewife | Massachusetts |
| 55 | Ernest L Pohlson | 47 | Head | Inspector | Iowa |
| 56 | Dorothy E Pohlson | 29 | Wife | Housewife | Illinois |
| 57 | Carolyn J Pohlson | 7 | Daughter | — | Kentucky |
| 58 | David L Pohlson | 5 | Son | — | Iowa |
| 59 | Esther M O Pohlson | 56 | Sister | Housekeeper | Iowa |
| 60 | Augusta M Lundgren | 59 | Head | Housewife | Sweden |
| 61 | Donald H Lundgren | 25 | Son | Loading Dock | Iowa |
| 62 | Maxine M O Lundgren | 19 | Daughter | Housekeeper | Iowa |
| 63 | Thomas E Grear | 34 | Head | Quarry Worker | Iowa |
| 64 | Gertrude V Grear | 23 | Wife | Housewife | Iowa |
| 65 | Barbara J Grear | 5 | Daughter | — | Iowa |
| 66 | Ralph H Engstrom | 32 | Head | Clerk | Iowa |
| 67 | Margaret M Engstrom | 30 | Wife | Maid | Iowa |
| 68 | Swan P O Anderson | 85 | Head | Farmer | Sweden |
| 69 | Nellie Anderson | 84 | Wife | Housewife | Sweden |
| 70 | Cassett D Allen | 45 | Head | Janitor | Iowa |
| 71 | Nancy B Allen | 35 | Wife | Maid | Indiana |
| 72 | Edith M O Allen | 4 | Daughter | — | Missouri |
| 73 | Claudette D Allen | 1 | Daughter | — | Iowa |
| 74 | Ed J Reese | 48 | Head | Truck Driver | Iowa |
| 75 | Mabel Reese | 41 | Wife | Housewife | Iowa |
| 76 | Pearl R Meese | 39 | Head | Ham Boning | Iowa |
| 77 | Minnie M Meese | 39 | Wife | Housewife | Iowa |
| 78 | William H Meese | 17 | Son | New Worker | Iowa |
| 79 | Charles Meese | 15 | Son | New Worker | Iowa |
| 80 | Elizabeth M Meese | 14 | Daughter | New Worker | Iowa |
Pedigree Summary
Thomas
Gen 1 · 4 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)