JG
Joseph Graham — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dubuque-County, Iowa
Our Model Tree links this Joseph Graham across the 1920, 1930 and 1940 US Censuses in Dubuque-County, Iowa (XGBoost, ~Confirmed), with identified parents Edward & Irene — first a head (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dubuque-County, Iowa |
| Surname | Graham |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Dubuque |
| 1935 Residence (County) | Dubuque |
| Additional Details | |
| Occupation | Investigator |
| Industry | State of Iowa |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | C-5 17 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Investigator |
| Township / Ward | Dubuque |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Thomas Graham | Son | — | ~1940 | |
| James Graham | Son | — | 2 | ~1938 |
| Joseph Graham | Head | — | 26 | ~1914 |
| Harriett Graham | Spouse | — | 24 | ~1916 |
Census Appearances
1920
Dubuque, Iowa
Son, age 5
Dubuque, Iowa · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Dubuque, Iowa
Son, age 16
Dubuque, Iowa · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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
Head, age 26
Dubuque-County, Iowa · implied b. ~1914 — 4 household members
| Surname | Graham |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Dubuque |
| 1935 Residence (County) | Dubuque |
| Occupation | Investigator |
| Industry | State of Iowa |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | C-5 17 |
| 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 Joseph Graham across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Graham (~0.92 confidence) and mother Irene Graham (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Graham
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Irene Graham
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Graham
Head · 1940 · age 26 · b. ~1914 · 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 — Dubuque-County, Iowa
Open full size
1940 US Federal Census — Dubuque-County, Iowa
Page Contents
28 people indexed on this census page (nara:1940:m-t0627-01159-00375)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harlan Shireman | 12 | Son | — | Iowa |
| 42 | Stanley Shireman | 10 | Son | — | Iowa |
| 43 | Joseph Shireman | 5 | Son | — | Iowa |
| 44 | Sandra Shireman | 1 | Daughter | — | Iowa |
| 45 | Henry Jr. Kieffer | 30 | Head | Route Foreman | Iowa |
| 46 | Genevieve @ Kieffer | 30 | Wife | — | Iowa |
| 47 | John H. Kieffer | 2 | Son | — | Iowa |
| 48 | Judith Kieffer | 0 | Daughter | — | Iowa |
| 49 | Kenneth @ Meyer | 27 | Head | Delivery | Iowa |
| 50 | Margie Meyer | 23 | Wife | — | Iowa |
| 51 | Robert Meyer | 2 | Son | — | Iowa |
| 52 | Loretta Scoltard | 54 | Head | Cream Tester | Iowa |
| 53 | Joseph @ Mccann | 69 | Uncle | — | Iowa |
| 54 | William @ Richardson | 43 | Head | Laborer | Iowa |
| 55 | Hannah Richardson | 62 | Mother | Laborer | Iowa |
| 56 | Charles Richardson | 37 | Son | Laborer | Iowa |
| 57 | Shirley Richardson | 8 | Nephew | — | Iowa |
| 58 | Robert Richardson | 6 | Nephew | — | Iowa |
| 59 | Charles Smith | 60 | Head | Laborer | Iowa |
| 60 | Anna @ Smith | 59 | Wife | — | Iowa |
| 61 | Joseph Graham THIS PERSON | 26 | Head | Investigator | Iowa |
| 62 | Harriett @ Graham | 24 | Wife | — | Iowa |
| 63 | James E. Graham | 2 | Son | — | Iowa |
| 64 | Thomas C. Graham | 0 | Son | — | Iowa |
| 65 | Howard Sahilly | 26 | Head | Adjuster | Iowa |
| 66 | June Sahilly | 24 | Wife | — | Iowa |
| 67 | James Hoskins | 46 | Head | Plumber | Missouri |
| 68 | Verona Hoskins | 46 | Wife | — | Iowa |
Pedigree Summary
Joseph
Gen 1 · 2 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)