JW
James Ward — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dubuque-County, Iowa
Our Model Tree links this James Ward across the 1930 and 1940 US Censuses in Dubuque-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dubuque-County, Iowa |
| Surname | Ward |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dubuque |
| 1935 Residence (County) | Dubuque |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | GW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | New Worker |
| Township / Ward | Dubuque |
| Est. Birth Year | ~1923 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Phyllis Ward | Daughter | — | 8 | ~1932 |
| Mary Ward | Daughter | — | 10 | ~1930 |
| Imelda Ward | Daughter | — | 6 | ~1934 |
| James Ward | Head | — | 49 | ~1891 |
| Vincent Ward | Son | — | 14 | ~1926 |
| William Ward | Son | — | 13 | ~1927 |
| Charles Ward | Son | — | 12 | ~1928 |
| James Ward | Son | — | 17 | ~1923 |
| Ronald Ward | Son | — | 18 | ~1922 |
| John Ward | Son | — | 15 | ~1925 |
| Mrs Ward | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Dubuque, Iowa
Son, age 7
Dubuque, Iowa · implied b. ~1923 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ward |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dubuque-County, Iowa
Son, age 17
Dubuque-County, Iowa · implied b. ~1923 — 11 household members
| Surname | Ward |
| Given Name | James Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dubuque |
| 1935 Residence (County) | Dubuque |
| Occupation | New Worker |
| Class of Worker | GW |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 James Ward across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Ward
Son · 1940 · age 17 · b. ~1923 · Iowa
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Sibling
Imelda Ward
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Ward
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Ward
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Ward
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Ward
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Ward
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Ward
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Ward
Sibling · 1940 · age 8
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 — Dubuque-County, Iowa
Open full size
1940 US Federal Census — Dubuque-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01158-00828)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Bauer | 54 | Head | Labor | Iowa |
| 42 | Mrs John Bauer | 40 | Wife | — | Iowa |
| 43 | John Jr Bauer | 22 | Son | New Worker | Iowa |
| 44 | Albert Bauer | 18 | Son | Labor | Iowa |
| 45 | Robert Bauer | 17 | Son | New Worker | Iowa |
| 46 | Alious Bauer | 65 | Head | Labor | Iowa |
| 47 | Melvin Schumacher | 32 | Head | Packer | Wisconsin |
| 48 | Mrs Melvin Schumacher | 21 | Wife | Tube Assembler | Illinois |
| 49 | Morris Mar Blum | 35 | Head | Buyer | Russia |
| 50 | Mrs Max Blum | 25 | Wife | — | Wisconsin |
| 51 | Alvin Blum | 5 | Son | — | Iowa |
| 52 | Clarence Ostrander | 23 | Head | Labor | Iowa |
| 53 | Mrs Clarence Ostrander | 17 | Wife | — | Iowa |
| 54 | Phyllis Ann Ostrander | 3 | Daughter | — | Iowa |
| 55 | Jean Lavon Ostrander | 1 | Daughter | — | Iowa |
| 56 | John Tittle | 34 | Head | Labor | Iowa |
| 57 | Mrs John Tittle | 25 | Wife | — | Montana |
| 58 | Mary Tittle | 10 | Daughter | — | Iowa |
| 59 | Beverly Tittle | 1 | Daughter | — | Iowa |
| 60 | Andrew Rosenthal | 50 | Brother-in-law | Baker | Wisconsin |
| 61 | Mrs Fanny Rosenthal | 36 | Sister | — | Iowa |
| 62 | Edward Atchison | 72 | Head | — | Iowa |
| 63 | Anton Pfeiffer | 61 | Head | — | New York |
| 64 | Mrs Anton Pfeiffer | 54 | Wife | — | Germany |
| 65 | Katherine Pfeiffer | 18 | Daughter | Green House | Iowa |
| 66 | Elizabeth Pfeiffer | 17 | Daughter | — | Iowa |
| 67 | Margaret Strong | 21 | Daughter | — | Iowa |
| 68 | Vincent Pfeiffer | 16 | Son | — | Iowa |
| 69 | Ray Pfeiffer | 12 | Son | — | Iowa |
| 70 | James Ward | 49 | Head | Cement Finisher | Iowa |
| 71 | Mrs James Ward | 38 | Wife | — | Iowa |
| 72 | Ronald Ward | 18 | Son | New Worker | Iowa |
| 73 | James Jr Ward THIS PERSON | 17 | Son | New Worker | Iowa |
| 74 | John Ward | 15 | Son | — | Iowa |
| 75 | Vincent Ward | 14 | Son | — | Iowa |
| 76 | William Ward | 13 | Son | — | Iowa |
| 77 | Charles Ward | 12 | Son | — | Iowa |
| 78 | Mary Ward | 10 | Daughter | — | Iowa |
| 79 | Phyllis Ward | 8 | Daughter | — | Iowa |
| 80 | Imelda Ward | 6 | Daughter | — | Iowa |
Related Census Records
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)