EC
Edward Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Edward Campbell across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Sarah — first a head (b.~1889), then head of a 6-person household.
Age 51
b. ~1889
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Campbell |
| Given Name | Edward |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Mail carrier |
| Industry | U.S. Mail |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Mail Carrier |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1889 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Edward | Age | Birth yr |
|---|---|---|---|---|
| Edward Campbell | Head | — | 51 | ~1889 |
| Joe Campbell | Other | — | 42 | ~1898 |
| Sarah Campbell | Other | — | 83 | ~1857 |
| Anna Laughlin | Other | — | 68 | ~1872 |
| Edward Campbell | Son | — | 2 | ~1938 |
| Zeta Campbell | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Polk, Iowa
Son, age 31
Polk, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Postal Clerk |
| Industry | Post Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 41
Polk, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Edward A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Real Estate |
| Industry | Broker |
| Class of Worker | O |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 51
Polk-County, Iowa · implied b. ~1889 — 6 household members
| Surname | Campbell |
| Given Name | Edward |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Mail carrier |
| Industry | U.S. Mail |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | H 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 Edward Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Sarah Campbell (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Sarah Campbell
b. ~1859
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Edward Campbell
Head · 1940 · age 51 · b. ~1889 · 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 — 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-t0627-01194-00098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Janet W. Browning | 24 | Wife | — | Iowa |
| 42 | Albert Hobbs | 26 | Head | Laborer | South Dakota |
| 43 | Frances W. Hobbs | 20 | Wife | — | Nebraska |
| 44 | Frank Gehey | 71 | Head | — | Germany |
| 45 | Anna Gehey | 63 | Wife | House Work | Germany |
| 46 | Edward Campbell THIS PERSON | 51 | Head | Mail Carrier | Iowa |
| 47 | Zeta Campbell | 38 | Wife | — | Iowa |
| 48 | Edward Jr. Campbell | 2 | Son | — | Iowa |
| 49 | Sarah Campbell | 83 | Mother | — | Ireland (Free State) |
| 50 | Joe Campbell | 42 | Brother | Groundkeeper | Iowa |
| 51 | Anna Laughlin | 68 | Mother-in-law | — | Indiana |
| 52 | Joseph S. Snijers | 44 | Head | Switchman | Kentucky |
| 53 | Evelyn Snijers | 36 | Wife | Bookkeeper | Iowa |
| 54 | Russell Fisher | 12 | Step-son | — | Florida |
| 55 | Barbara Fisher | 10 | Step-daughter | — | Florida |
| 56 | Louise Landolt | 23 | House Keeper | House Keeper | Missouri |
| 57 | Robert Daly | 27 | Head | Sales Engineer | Iowa |
| 58 | Frederica S. Daly | 26 | Wife | — | Wisconsin |
| 59 | Timothy Daly | 4 | Son | — | Illinois |
| 60 | Michael Daly | 1 | Son | — | Iowa |
| 61 | Walter Co-Pole | 33 | Head | Plumber | Maryland |
| 62 | Bernice S. Co-Pole | 29 | Wife | — | Kansas |
| 63 | Charles Harbety | 38 | Head | Manager | Ohio |
| 64 | Ila S. Harbety | 34 | Wife | — | Oklahoma |
| 65 | Charles Harbety | 4 | Son | — | California |
| 66 | Anna Harbety | 1 | Daughter | — | Oklahoma |
| 67 | Earl Ashton | 39 | Head | Fleet Reserve Officer | Michigan |
| 68 | Iris S. Ashton | 39 | Wife | — | California |
| 69 | Allen Ashton | 10 | Son | — | California |
| 70 | Marius S. Peterson | 62 | Head | — | Iowa |
| 71 | John Peterson | 25 | Son | Salesman | Iowa |
| 72 | Winifred Peterson | 33 | Daughter | Stenographer | Iowa |
| 73 | Allen Hanson | 8 | Grandson | — | Iowa |
| 74 | John Wright | 32 | Head | Salesman | Iowa |
| 75 | Mary S. Wright | 32 | Wife | — | Iowa |
| 76 | Gary J. Wright | 9 | Daughter | — | Iowa |
| 77 | George Wright | 6 | Son | — | Iowa |
| 78 | George Norman | 58 | Head | Salesman | Ohio |
| 79 | Minnie S. Norman | 58 | Wife | — | Iowa |
| 80 | George Rasche | 41 | Boarder | Engineer | Iowa |
Pedigree Summary
Edward
Gen 1 · 1 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)