AP
Alice Porter — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Alice Porter across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a daughter (b.~1907), then head of a 3-person household.
Age 33
b. ~1907
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Porter |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Unincorporated |
| Additional Details | |
| Occupation | Recreational Director |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1610 |
| Highest Grade | C 4 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Recreational Director |
| Township / Ward | Unincorporated |
| Est. Birth Year | ~1907 |
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 Alice | Age | Birth yr |
|---|---|---|---|---|
| Alice Porter | Daughter | — | 33 | ~1907 |
| Mrs Porter | Head | — | 52 | ~1888 |
| Richard Porter | Son | — | 23 | ~1917 |
Census Appearances
1920
Polk, Iowa
Daughter, age 12
Polk, Iowa · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | Alice Rose |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Polk, Iowa
Daughter, age 22
Polk, Iowa · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Porter |
| Given Name | Alice |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Teacher |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Polk-County, Iowa
Daughter, age 33
Polk-County, Iowa · implied b. ~1907 — 3 household members
| Surname | Porter |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Unincorporated |
| Occupation | Recreational Director |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1610 |
| Highest Grade | C 4 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Alice Porter across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Porter (~0.92 confidence) and father Robert Porter (~0.92 confidence) and mother Alice Porter (~0.92 confidence) and mother Mrs Porter (~0.92 confidence) and mother Nell Porter (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Porter
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Robert Porter
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Alice Porter
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Mrs Porter
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Nell Porter
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alice Porter
Daughter · 1940 · age 33 · b. ~1907 · Iowa
★ You are viewing this record
Sibling
Richard Porter
Sibling · 1940 · age 23
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 — 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-t0627-01192-00069)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leo L Popp | 41 | Head | Machinist | Iowa |
| 2 | Helen E Popp | 32 | Wife | Cook | Iowa |
| 3 | Frank Crowe | 33 | Head | Golf Professional | Wisconsin |
| 4 | Verena Crowe | 29 | Wife | — | Wisconsin |
| 5 | Kathleen Crowe | 3 | Daughter | — | Illinois |
| 6 | Blanche E Fodick | 54 | Head | Personal Maid | Iowa |
| 7 | Nancy Ann Fodick | 11 | Daughter | — | Iowa |
| 8 | Ida May Drisom | 67 | Sister-in-law | — | Illinois |
| 9 | Lon Overton | 59 | Head | Auto Assemblyman | Iowa |
| 10 | Halla Overton | 52 | Wife | — | Iowa |
| 11 | Fred Overton | 28 | Son | Salesman | Iowa |
| 12 | Mildred Overton | 27 | Daughter | Computer Operator | Iowa |
| 13 | Charles Parks | 56 | Head | Miner | England |
| 14 | Ada Grace Parks | 54 | Wife | Housework | England |
| 15 | Sarah Ethel Parks | 13 | Daughter | — | Iowa |
| 16 | Andrew Lineweaver | 53 | Head | Power Engineer | Iowa |
| 17 | Nellie Lineweaver | 49 | Wife | Janitress | Iowa |
| 18 | Barbara Jean Lineweaver | 13 | Daughter | — | Iowa |
| 19 | Carl Parker | 33 | Head | Attorney | Missouri |
| 20 | Marvel Parker | 30 | Wife | — | Iowa |
| 21 | Carla Parker | 8 | Daughter | — | Iowa |
| 22 | Russell Parker | 5 | Son | — | Iowa |
| 23 | Ira Davis | 53 | Mother-in-law | Janitress | Iowa |
| 24 | Mrs Nellie A Porter | 52 | Head | Teacher | Illinois |
| 25 | Alice Porter THIS PERSON | 33 | Daughter | Recreational Director | Illinois |
| 26 | Richard Porter | 23 | Son | — | Iowa |
| 27 | Orville Briley | 35 | Head | Oil Station | Iowa |
| 28 | Pearl Briley | 35 | Wife | — | Illinois |
| 29 | Dale Briley | 15 | Son | — | Illinois |
| 30 | Ben Porter | 60 | Head | Oil Station Attendant | Illinois |
| 31 | Mary Porter | 61 | Wife | — | England |
| 32 | James Porter | 24 | Daughter | Pressman | Iowa |
| 33 | Howard Benj Porter | 18 | Son | Oil Sta Attendant | Iowa |
| 34 | Raymond W Babb | 26 | Son-in-law | Butcher | Iowa |
| 35 | Edelyn Babb | 27 | Daughter | — | Iowa |
| 36 | Joan Marie Babb | 3 | Grand Daughter | — | Iowa |
| 37 | Ed Sullivan | 43 | Head | Machinist | Iowa |
| 38 | Irene Sullivan | 44 | Wife | Housewife | Iowa |
| 39 | Kenneth J Keeler | 32 | Head | Warehouse Foreman | Iowa |
| 40 | Hildritt Keeler | 30 | Wife | — | Iowa |
Pedigree Summary
Alice + 1 sibling
Gen 1 · 5 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)