WA
William Allen — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this William Allen across the 1910, 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents Frank & Bertha — first a son (b.~1901), then head of a 6-person household.
Age 29
b. ~1901
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Allen |
| Given Name | William D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Baker |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1901 |
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 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Frank Allen | Head | — | 65 | ~1865 |
| William Allen | Son | — | 29 | ~1901 |
| Frank Allen | Son | — | 27 | ~1903 |
| Albert Allen | Son | — | 25 | ~1905 |
| James Allen | Son | — | 33 | ~1897 |
| Barton Allen | Spouse | — | 59 | ~1871 |
Census Appearances
Son, age 10
Polk, Iowa · implied b. ~1900 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Polk, Iowa
Son, age 19
Polk, Iowa · implied b. ~1901 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | William D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Teamster |
| Industry | Coal Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 29
Polk, Iowa · implied b. ~1901 — 6 household members
| Surname | Allen |
| Given Name | William D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 William Allen across 3 US Census years (1910, 1920 and 1930) in Polk, Iowa, using XGBoost record linkage. Identified parents: father Frank Allen (~0.92 confidence) and mother Bertha Allen (~0.92 confidence) and mother Barbara Allen (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Allen
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Bertha Allen
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Barbara Allen
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Allen
Son · 1930 · age 29 · b. ~1901 · Iowa
★ You are viewing this record
Sibling
Frank Allen
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Allen
Sibling · 1930 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Allen
Sibling · 1930 · age 25
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
1930 US Federal Census — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
43 people indexed on this census page (ia:1930:iowacensus00reel677:0024)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frank L Allen | 65 | Head | Insurance Agent | Iowa |
| 52 | Barton Allen | 59 | Wife | — | Iowa |
| 53 | James T Allen | 33 | Son | Baker | Iowa |
| 54 | William D Allen THIS PERSON | 29 | Son | Baker | Iowa |
| 55 | Frank E Allen | 27 | Son | Baker | Iowa |
| 56 | Albert J Allen | 25 | Son | Salesman | Iowa |
| 57 | Frances Abramovich | 36 | Head | — | Austria |
| 58 | Stephen Abramovich | 23 | Son | Laborer | Missouri |
| 59 | Frances Abramovich | 20 | Daughter | Clerical | Missouri |
| 60 | John Abramovich | 18 | Son | Draftsman | Iowa |
| 61 | Tony Abramovich | 15 | Son | — | Iowa |
| 62 | Victor Branish | 47 | Head | Blacksmith | Russia |
| 63 | Emma Branish | 45 | Wife | — | Russia |
| 64 | Frank Branish | 19 | Son | Salesman | Iowa |
| 65 | William Pragak | 52 | Head | Fireman | Iowa |
| 66 | Nelly Pragak | 47 | Wife | — | England |
| 67 | Ethel May Pragak | 11 | Daughter | — | Missouri |
| 68 | Charles H White | 57 | Head | Laborer | Missouri |
| 69 | Julia White | 60 | Wife | — | Illinois |
| 70 | Robert L Lang | 36 | Head | Foreman | Iowa |
| 71 | Hazel J Lang | 35 | Wife | — | Iowa |
| 72 | Robert L Lang | 14 | Son | — | Iowa |
| 73 | Ruth Lang | 12 | Daughter | — | Iowa |
| 74 | Dorothy Lang | 10 | Daughter | — | Iowa |
| 75 | Betty Jane Lang | 7 | Daughter | — | Iowa |
| 76 | Margaret Lang | 6 | Daughter | — | Iowa |
| 77 | Hazel Fern Lang | 5 | Daughter | — | Iowa |
| 78 | Teofil Grajewski | 44 | Head | Coal Miner | Poland |
| 79 | Josephine Grajewski | 39 | Wife | — | Poland |
| 80 | Leonard J Grajewski | 11 | Son | — | Iowa |
| 81 | Marion J Grajewski | 9 | Son | — | Iowa |
| 82 | Mamie Lucille Grajewski | 6 | Daughter | — | Iowa |
| 83 | Walter J Grajewski | 5 | Son | — | Iowa |
| 84 | Oscar Martin | 24 | Head | Tire Builder | Iowa |
| 85 | Laura Martin | 22 | Wife | — | Iowa |
| 86 | Betty Jane Martin | 3 | Daughter | — | Iowa |
| 87 | Carlene Mae Martin | 2 | Daughter | — | Iowa |
| 88 | Bonnie Martin | 1 | Daughter | — | Iowa |
| 89 | Lidall John Martin | 18 | Brother-in-law | — | Iowa |
| 90 | Hulda Pearson | 68 | Head | — | Sweden |
| 91 | John Pearson | 38 | Son | Carpenter | Sweden |
| 92 | George Sipes | 52 | Head | Bricklayer | Iowa |
| 93 | Anna Sipes | 43 | Wife | — | Wyoming |
Pedigree Summary
William + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)