JW
John Watson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this John Watson across the 1920, 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 3-person household.
Age 52
b. ~1888
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Watson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Occupation | Auto mechanic |
| Industry | Auto Private Garage |
| Class of Worker | OA |
| Hours Worked | 44 |
| Income (1939) | 720 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Auto Mechanic |
| Township / Ward | Davenport City |
| Est. Birth Year | ~1888 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Watson | Head | — | 52 | ~1888 |
| Jay Watson | Son | — | 26 | ~1914 |
| Dora Watson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Scott, Iowa
Other, age 33
Scott, Iowa · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watson |
| Given Name | John A. |
| Relationship to Head | Son in law |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Promoter |
| Industry | Garage |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Scott, Iowa
Head, age 43
Scott, Iowa · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Proprietor |
| Industry | Garage |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Scott-County, Iowa
Head, age 52
Scott-County, Iowa · implied b. ~1888 — 3 household members
| Surname | Watson |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Occupation | Auto mechanic |
| Industry | Auto Private Garage |
| Class of Worker | OA |
| Hours Worked | 44 |
| Income (1939) | 720 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Watson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Watson
Head · 1940 · age 52 · b. ~1888 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01203-00763)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lola Devick | 34 | Wife | — | Illinois |
| 2 | (Continued In Margin) | None | — | — | — |
| 3 | Milo Thomas | 32 | Head | Embalmer | Illinois |
| 4 | Dorothy Thomas | 26 | Wife | — | Missouri |
| 5 | Dina Lee Thomas | 2 | Daughter | — | Iowa |
| 6 | John Hogarth | 38 | Head | Salesman | Illinois |
| 7 | Helen Hogarth | 31 | Wife | — | Iowa |
| 8 | Delores Hogarth | 9 | Daughter | — | Iowa |
| 9 | Barbara Slattery | 74 | Mother-in-law | — | Iowa |
| 10 | Lawrence Sorrowfree | 55 | Head | Salesman | Iowa |
| 11 | Elizabeth Sorrowfree | 54 | Wife | Teacher | Iowa |
| 12 | Thomas Graaff | 31 | Head | Foreman | Iowa |
| 13 | Alvita Graaff | 28 | Wife | — | Iowa |
| 14 | Joyce Graaff | 7 | Daughter | — | Iowa |
| 15 | Andrew Graaff | 4 | Son | — | Iowa |
| 16 | Louis Wiley | 48 | Head | Salesman | Colorado |
| 17 | Lillian Wiley | 45 | Wife | — | Iowa |
| 18 | Mary L. Wiley | 9 | Daughter | — | Iowa |
| 19 | Nellie O'Brien | 69 | Mother-in-law | — | Iowa |
| 20 | Loyd Shifston | 41 | Head | Salesman | Illinois |
| 21 | Mary Shifston | 39 | Wife | — | Illinois |
| 22 | Jane Shifston | 17 | Daughter | — | Iowa |
| 23 | Jerry Shifston | 11 | Son | — | Iowa |
| 24 | Frederick T. Cutting | 51 | Head | Salesman | England |
| 25 | Winnifred Cutting | 35 | Wife | — | Canada |
| 26 | Frederick E. Cutting | 19 | Son | — | Canada |
| 27 | Gerald M. Cutting | 18 | Son | — | Canada |
| 28 | John A. Watson THIS PERSON | 52 | Head | Auto Mechanic | Pennsylvania |
| 29 | Dora M. Watson | 50 | Wife | — | Pennsylvania |
| 30 | Jay A. Watson | 26 | Son | Lawyer | Pennsylvania |
| 31 | William A. Thompson | 66 | Head | — | Pennsylvania |
| 32 | Mabel Thompson | 65 | Wife | — | Iowa |
| 33 | Walter Wren | 67 | Head | Stationary Fireman | England |
| 34 | Isabelle Wren | 64 | Wife | — | Iowa |
| 35 | Lester Eppers | 32 | Head | Baker | Iowa |
| 36 | Mildred Eppers | 29 | Wife | — | Iowa |
| 37 | Robert Reiner | 47 | Head | Salesman | Iowa |
| 38 | Helen Reiner | 46 | Wife | — | Iowa |
| 39 | Robert Reiner | 16 | Son | — | Iowa |
| 40 | Elizabeth Reiner | 14 | Daughter | — | 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)