ED
Earl Davis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Linn, Iowa
Our Model Tree links this Earl Davis across the 1910, 1920 and 1930 US Censuses in Linn, Iowa (XGBoost, ~Confirmed), with identified parents George & Daisy — first a son (b.~1905), then head of a 5-person household.
Age 25
b. ~1905
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Linn, Iowa |
| Surname | Davis |
| Given Name | Earl L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Police |
| Industry | Civil Service |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Police |
| Township / Ward | Cedar Rapids City |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| George Davis | Head | — | 53 | ~1877 |
| Earl Davis | Son | — | 25 | ~1905 |
| Stanley Davis | Son | — | 22 | ~1908 |
| George Davis | Son | — | 15 | ~1915 |
| Daisy Davis | Spouse | — | 52 | ~1878 |
Census Appearances
1910
Linn, Iowa
Son, age 2
Linn, Iowa · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Linn, Iowa
Son, age 14
Linn, Iowa · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| 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
Linn, Iowa
Son, age 25
Linn, Iowa · implied b. ~1905 — 5 household members
| Surname | Davis |
| Given Name | Earl L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Police |
| Industry | Civil Service |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Earl Davis across 3 US Census years (1910, 1920 and 1930) in Linn, Iowa, using XGBoost record linkage. Identified parents: father George Davis (~0.92 confidence) and mother Daisy Davis (~0.92 confidence) and father George Davis (~0.92 confidence) and father David Davis (~0.92 confidence) and mother Matilda Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Davis
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Daisy Davis
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
George Davis
b. ~1878
Source father
● Household
· direct · ~0.92
Father
David Davis
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Matilda Davis
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Davis
Son · 1930 · age 25 · b. ~1905 · Iowa
★ You are viewing this record
Sibling
George Davis
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Davis
Sibling · 1930 · age 22
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 — Linn, Iowa
Open full size
1930 US Federal Census — Linn, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel665:0860)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Hahn | 57 | Head | Cement Finisher | Illinois |
| 2 | Maud Hahn | 47 | Wife | Saleslady | Illinois |
| 3 | Ernest Hahn | 20 | Son | Chauffeur | Iowa |
| 4 | Edwina Hahn | 12 | Daughter | — | Iowa |
| 5 | Vivian Hahn | 13 | Daughter | — | Iowa |
| 6 | Harold Hahn | 27 | Son | Chauffeur | Iowa |
| 7 | Joseph C. Lucas | 26 | Lodger | Decorator | Iowa |
| 8 | George H. Davis | 53 | Head | Cement Finisher | Iowa |
| 9 | Daisy F. Davis | 52 | Wife | — | Iowa |
| 10 | Earl L. Davis THIS PERSON | 25 | Son | Police | Iowa |
| 11 | Stanley L. Davis | 22 | Son | Receiving Clerk | Iowa |
| 12 | George V. Davis | 15 | Son | — | Iowa |
| 13 | Robert D. Larimer | 28 | Head | Hoistman | Iowa |
| 14 | Leone E. Larimer | 27 | Wife | — | Iowa |
| 15 | Robert Jr. Larimer | 9 | Son | — | Iowa |
| 16 | George Greene | 42 | Lodger | Truck Driver | Iowa |
| 17 | Carl F. Gettin | 47 | Head | Scraper | Germany |
| 18 | Edna M. Gettin | 34 | Wife | — | Iowa |
| 19 | Audrey G. Gettin | 8 | Daughter | — | Iowa |
| 20 | Dorothy J. Gettin | 6 | Daughter | — | Iowa |
| 21 | Robert D. Gettin | 3 | Son | — | Iowa |
| 22 | Helen L. Gettin | 1 | Daughter | — | Iowa |
| 23 | Peter G. Rahe | 31 | Head | Solicitor | Iowa |
| 24 | Helen R. Rahe | 31 | Wife | Saleslady | Iowa |
| 25 | Geraldine R. Rahe | 10 | Daughter | — | Iowa |
| 26 | Charles E. Fulling | 23 | Head | Laborer | Iowa |
| 27 | Pearl A. Fulling | 22 | Wife | — | Iowa |
| 28 | George C. Fulling | 2 | Son | — | Iowa |
| 29 | Evelyn G. Fulling | 1 | Daughter | — | Iowa |
| 30 | Carrie M. Holmes | 53 | Head | — | Iowa |
| 31 | Arthur E. Dunne | 57 | Head | Water Tender | Iowa |
| 32 | Dorothy E. Dunne | 83 | Mother | — | Ohio |
| 33 | William S. Spencer | 34 | Head | Stereotyper | Iowa |
| 34 | Florence E. Spencer | 27 | Wife | — | Iowa |
| 35 | Homer S. Mann | 31 | Head | Mechanic | Iowa |
| 36 | Christine A. Mann | 23 | Wife | — | Iowa |
| 37 | Rose M. Mann | 4 | Daughter | — | Iowa |
| 38 | Christine E. Mann | 3 | Daughter | — | Iowa |
| 39 | Thomas H. Mann | 1 | Son | — | Iowa |
| 40 | Charles A. Hess | 38 | Head | Switchman | Iowa |
| 41 | Jennie M. Hess | 36 | Wife | — | Iowa |
| 42 | Anna Lamp | 69 | Mother-in-law | — | Pennsylvania |
| 43 | Henrietta R. Lamp | 23 | Lodger | Department Head | Iowa |
| 44 | William O. Eckler | 33 | Head | Pastor | Kansas |
| 45 | Velma Eckler | 31 | Wife | — | Kansas |
| 46 | Janice Eckler | 5 | Daughter | — | Indiana |
| 47 | Paul R. Eckler | 1 | Son | — | Iowa |
| 48 | John H. Freeley | 62 | Head | Dredger | Pennsylvania |
| 49 | Carrie M. Freeley | 53 | Wife | — | Iowa |
| 50 | Katherine Shernek | 84 | Mother-in-law | — | Bohemia |
Pedigree Summary
Earl + 2 siblings
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 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)