JC
John Cross — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this John Cross across the 1920, 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents John & Myriam — first a son (b.~1911), then head of a 4-person household.
Age 19
b. ~1911
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Cross |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Richard Cross | Son | — | 11 | ~1919 |
| John Cross | Son | — | 19 | ~1911 |
| Miriam Cross | Other | — | 44 | ~1886 |
| John Cross | Head | — | 48 | ~1882 |
Census Appearances
1920
Polk, Iowa
Son, age 9
Polk, Iowa · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cross |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 19
Polk, Iowa · implied b. ~1911 — 4 household members
| Surname | Cross |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 31
Polk-County, Iowa · implied b. ~1909 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cross |
| Given Name | Joe |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Urbandale Town |
| 1935 Residence (County) | Polk |
| Occupation | Labor |
| Industry | Bridge Bldg |
| Class of Worker | GW |
| Hours Worked | 37 |
| Income (1939) | 617 |
| Highest Grade | Hs 2 |
| 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 John Cross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Cross (~0.92 confidence) and mother Myriam Cross (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Cross
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Myriam Cross
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cross
Son · 1930 · age 19 · b. ~1911 · Iowa
★ You are viewing this record
Sibling
Richard Cross
Sibling · 1930 · age 11
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
48 people indexed on this census page (ia:1930:iowacensus00reel674:0262)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Judson E. Piper | 45 | Head | Lawyer | Iowa |
| 52 | Ruth F. Piper | 42 | Wife-H | — | Ohio |
| 53 | Donald S. Piper | 3 | Son | — | Iowa |
| 54 | John L. Cross | 48 | Head | Salesman | Illinois |
| 55 | Miriam L. Cross | 44 | Wife-H | — | Iowa |
| 56 | Richard B. Cross | 11 | Son | — | Iowa |
| 57 | John L. Cross THIS PERSON | 19 | Son | — | Iowa |
| 58 | John A. Elliott | 48 | Head | Manager | Iowa |
| 59 | Mildred H. Elliott | 46 | Wife-H | — | Iowa |
| 60 | Mary J. Elliott | 17 | Daughter | — | Iowa |
| 61 | Ella Burrell | 70 | Mother-in-law | — | Iowa |
| 62 | Samuel Williams | 33 | Servant | Servant | Louisiana |
| 63 | Mildred Williams | 20 | Servant | Servant | Iowa |
| 64 | Jay N. Darling | 53 | Head | Cartoonist | Michigan |
| 65 | Katherine P. Darling | 52 | Wife-H | — | Iowa |
| 66 | John P. Darling | 20 | Son | — | Iowa |
| 67 | Mary Darling | 17 | Daughter | — | Iowa |
| 68 | Matthew Dethorne | 38 | Servant | Servant | Indiana |
| 69 | Clara Dethorne | 34 | Servant | Cook | Kansas |
| 70 | Everett S. Pratt | 54 | Head | District Sec. | Ohio |
| 71 | Caroline Pratt | 46 | Wife-H | — | Sweden |
| 72 | Hazel V. Corbin | 30 | — | Bookkeeper | Nebraska |
| 73 | Everett Smith | 21 | Roomer | Funeral Director | Iowa |
| 74 | James Hamlin | 20 | Roomer | Ambulance Attdt. | Iowa |
| 75 | Wayne Lockwood | 19 | Roomer | Chauffeur | Iowa |
| 76 | Fred S. Schalinske | 22 | Roomer | Asst. Director | South Dakota |
| 77 | Harriott Coggeshall | 53 | Head | Trustee | Iowa |
| 78 | Dora M. Coggeshall | 54 | Wife-H | — | Iowa |
| 79 | Harris M. Coggeshall | 22 | Son | — | Iowa |
| 80 | Kate M. Coggeshall | 20 | Daughter | — | Iowa |
| 81 | Henry C. Eaton | 43 | Head | Custodian | England |
| 82 | Edith M. Eaton | 40 | Wife-H | — | England |
| 83 | Mary E. Eaton | 17 | Daughter | — | Iowa |
| 84 | Eugene Herkelman | 26 | Head | Decorator | Iowa |
| 85 | Irene L. Herkelman | 25 | Wife-H | Dental Asst. | Iowa |
| 86 | Fred M. Loring | 31 | Brother-in-law | Asst. Sec. | Iowa |
| 87 | Robert Root | 25 | Head | Salesman | Iowa |
| 88 | Ruth Root | 25 | Wife-H | — | Iowa |
| 89 | Birdie M. Maxwell | 52 | Head-H R | — | Iowa |
| 90 | Margaret E. Maxwell | 29 | Daughter | Stenographer | Iowa |
| 91 | R. Liam Maxwell | 22 | Daughter | Milliner | Iowa |
| 92 | Thomas J. Maxwell | 16 | Son | — | Iowa |
| 93 | Alma M. Smith | 49 | Head-H R | Secretary | Iowa |
| 94 | Thomas H. Drumm | 58 | Head | Bishop | Irish Free State |
| 95 | Margaret Drumm | 37 | Cousin | Cook | New York |
| 96 | William Lundahl | 33 | Head | Chief Clerk | Illinois |
| 97 | Eleott Lundahl | 31 | Wife-H | Teller | Minnesota |
| 98 | Ada A. Mcguire | 31 | Roomer | Stenographer | Minnesota |
Pedigree Summary
John + 1 sibling
Gen 1 · 2 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)