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William Jacobs — 1930 US Census Record
Model Tree available1930 United States Federal Census · Keokuk, Iowa
Our Model Tree links this William Jacobs across the 1910, 1920 and 1930 US Censuses in Keokuk, Iowa (XGBoost, ~Confirmed), with identified parents Claude & Mary — first a son (b.~1906), then head of a 8-person household.
Age 24
b. ~1906
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Keokuk, Iowa |
| Surname | Jacobs |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Laborer |
| Industry | Electrician |
| Class of Worker | 78X1 |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | West Lancaster Township |
| Est. Birth Year | ~1906 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Viola Jacobs | Daughter | — | 21 | ~1909 |
| Ruth Jacobs | Daughter | — | 10 | ~1920 |
| Claude Jacobs | Head | — | 51 | ~1879 |
| Calvin Jacobs | Son | — | 7 | ~1923 |
| Eugene Jacobs | Son | — | 19 | ~1911 |
| Carroll Jacobs | Son | — | 14 | ~1916 |
| William Jacobs | Son | — | 24 | ~1906 |
| Mira Jacobs | Spouse | — | 48 | ~1882 |
Census Appearances
1910
Keokuk, Iowa
Son, age 3
Keokuk, Iowa · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | William A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Keokuk, Iowa
Son, age 13
Keokuk, Iowa · implied b. ~1907 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jacobs |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Keokuk, Iowa
Son, age 24
Keokuk, Iowa · implied b. ~1906 — 8 household members
| Surname | Jacobs |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Electrician |
| Class of Worker | 78X1 |
| 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 Jacobs across 3 US Census years (1910, 1920 and 1930) in Keokuk, Iowa, using XGBoost record linkage. Identified parents: father Claude Jacobs (~0.92 confidence) and mother Mary Jacobs (~0.92 confidence) and mother Mira Jacobs (~0.92 confidence) and mother Myra Jacobs (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Claude Jacobs
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mary Jacobs
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mira Jacobs
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Myra Jacobs
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Jacobs
Son · 1930 · age 24 · b. ~1906 · Iowa
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Sibling
Eugene Jacobs
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Jacobs
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Jacobs
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carroll Jacobs
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Jacobs
Sibling · 1930 · age 21
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 — Keokuk, Iowa
Open full size
1930 US Federal Census — Keokuk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel662:0948)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | W. E. Utterback | 53 | Head | Farmer | Indiana |
| 2 | Allie V. Utterback | 53 | Wife | — | Kansas |
| 3 | Walter O. Utterback | 20 | Son | Farmer | Iowa |
| 4 | Mack C. Utterback | 27 | Head | — | Kansas |
| 5 | Margret Utterback | 71 | Sister | — | Kansas |
| 6 | J. M. Randall | 51 | Head | Farmer | Illinois |
| 7 | A. J. Randall | 85 | Father | — | Iowa |
| 8 | Wm. J. Sr. Smothers | 29 | Head | Farmer | Iowa |
| 9 | Eda Smothers | 28 | Wife | — | Iowa |
| 10 | Wilard Smothers | 9 | Son | — | Iowa |
| 11 | Lowell Smothers | 7 | Son | — | Iowa |
| 12 | Robert Smothers | 6 | Son | — | Iowa |
| 13 | Billie Jr. Smothers | 4 | Son | — | Iowa |
| 14 | Kathleen Smothers | 2 | Daughter | — | Iowa |
| 15 | Marion Smothers | 1 | Son | — | Iowa |
| 16 | John L. Hermes | 51 | Head | Farmer | Iowa |
| 17 | Mattie E. Hermes | 42 | Wife | — | Iowa |
| 18 | Ernest A. Hermes | 17 | Son | — | Iowa |
| 19 | Elvin E. Hermes | 9 | Son | — | Iowa |
| 20 | Henry Bakehouse | 46 | Head | Farmer | Iowa |
| 21 | Martha Bakehouse | 63 | Mother | — | Germany |
| 22 | W. J. Bakehouse | 44 | Brother | Farmer | Iowa |
| 23 | Albert Bakehouse | 31 | Brother | Farmer | Iowa |
| 24 | Peter Herschofner | 51 | Head | Farmer | Iowa |
| 25 | Margret Herschofner | 48 | Wife | — | Iowa |
| 26 | Leo Herschofner | 20 | Son | Farmer | Iowa |
| 27 | Gertrude Herschofner | 15 | Daughter | — | Iowa |
| 28 | Edna Mae Herschofner | 10 | Daughter | — | Iowa |
| 29 | Fred J. Bruns | 44 | Head | Farmer | Iowa |
| 30 | Evelyn Bruns | 16 | Daughter | — | Iowa |
| 31 | Leo Bruns | 18 | Son | Farmer | Iowa |
| 32 | N. H. Wallerick | 49 | Head | Farmer | Iowa |
| 33 | Jessie Wallerick | 47 | Wife | — | Iowa |
| 34 | Grace Wallerick | 16 | Daughter | — | Iowa |
| 35 | Dorothy Wallerick | 13 | Daughter | — | Iowa |
| 36 | Hazel Wallerick | 10 | Daughter | — | Iowa |
| 37 | Claude Jacobs | 51 | Head | Farmer | Iowa |
| 38 | Mira Jacobs | 48 | Wife | — | Iowa |
| 39 | William A. Jacobs THIS PERSON | 24 | Son | Laborer | Iowa |
| 40 | Viola Jacobs | 21 | Daughter | — | Iowa |
| 41 | Eugene Jacobs | 19 | Son | — | Iowa |
| 42 | Carroll Jacobs | 14 | Son | — | Iowa |
| 43 | Ruth Jacobs | 10 | Daughter | — | Iowa |
| 44 | Calvin Jacobs | 7 | Son | — | Iowa |
| 45 | Joe Rathke | 43 | Head | Farmer | Kentucky |
| 46 | Lola Rathke | 45 | Wife | — | Iowa |
| 47 | Raymond Rathke | 20 | Son | — | Iowa |
| 48 | Harold Rathke | 12 | Son | — | Iowa |
| 49 | Sam B. Flanagan | 58 | Head | Farmer | Iowa |
| 50 | Ethel B. Flanagan | 46 | Wife | — | Iowa |
Pedigree Summary
William + 5 siblings
Gen 1 · 4 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)