JU
John Underwood — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Lee, Iowa
Our Model Tree links this John Underwood across the 1910 and 1920 US Censuses in Lee, Iowa (XGBoost, ~Confirmed) — first a son (b.~1900), then head of a 9-person household.
Age 20
b. ~1900
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Lee, Iowa |
| Surname | Underwood |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Denmark Tp |
| Est. Birth Year | ~1900 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Chas Underwood | Son | — | 24 | ~1896 |
| Sarah Underwood | Daughter | — | 17 | ~1903 |
| David Underwood | Other | — | 84 | ~1836 |
| Nathan Underwood | Head | — | 67 | ~1853 |
| Floyd Underwood | Son | — | 22 | ~1898 |
| Arthur Underwood | Son | — | 15 | ~1905 |
| Eugene Underwood | Son | — | 13 | ~1907 |
| John Underwood | Son | — | 20 | ~1900 |
| Ida Underwood | Spouse | — | 62 | ~1858 |
Census Appearances
1910
Lee, Iowa
Son, age 10
Lee, Iowa · implied b. ~1900 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Lee, Iowa
Son, age 20
Lee, Iowa · implied b. ~1900 — 9 household members
| Surname | Underwood |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 John Underwood across 2 US Census years (1910 and 1920) in Lee, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
John Underwood
Son · 1920 · age 20 · b. ~1900 · Iowa
★ You are viewing this record
Sibling
Sarah Underwood
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Underwood
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Underwood
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Floyd Underwood
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chas Underwood
Sibling · 1920 · age 24
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
1920 US Federal Census — Lee, Iowa
Open full size
1920 US Federal Census — Lee, Iowa
Page Contents
51 people indexed on this census page (ia:1920:14thcensusofpopu498unit:0609)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edith R Nelson | 27 | Daughter | — | Iowa |
| 2 | Dr William G Black | 77 | Head | Doctor | New York |
| 3 | Scarlet C Black | 67 | Wife | — | New York |
| 4 | Edwyn H Black | 24 | Son | Reporter | Iowa |
| 5 | Esther G Black | 22 | Daughter | School Teacher | Iowa |
| 6 | Jacob Christensen | 68 | Head | — | Denmark |
| 7 | Ingeborg Christensen | 69 | Wife | — | Denmark |
| 8 | Loyd H Jones | 25 | Head | Labor | Iowa |
| 9 | Mabel B Jones | 23 | Wife | — | Illinois |
| 10 | Harold W Jones | 1 | Son | None | Iowa |
| 11 | Marjorie H Jones | 14 | Sister-in-law | None | Illinois |
| 12 | John J Fuller | 51 | Head | Labor By Day | Iowa |
| 13 | Lula M Fuller | 39 | Wife | None | Illinois |
| 14 | Harley D Fuller | 16 | Son | None | Iowa |
| 15 | Nathan Judy | 68 | Head | Farmer | Iowa |
| 16 | Mary R Judy | 54 | Wife | None | Iowa |
| 17 | Helen C Judy | 27 | Daughter | Teacher | Iowa |
| 18 | Gertrude M Judy | 21 | Daughter | Bookkeeper | Iowa |
| 19 | Wayne M Judy | 17 | Son | None | Iowa |
| 20 | H Kenneth Judy | 11 | Son | None | Iowa |
| 21 | Genevieve L Judy | 8 | Daughter | None | Iowa |
| 22 | Henry E Poddiford | 66 | Head | Farmer | Wisconsin |
| 23 | Loraine W Poddiford | 52 | Wife | None | Iowa |
| 24 | Nathan Underwood | 67 | Head | Farmer | Iowa |
| 25 | Ida Underwood | 62 | Wife | None | Iowa |
| 26 | Chas F Underwood | 24 | Son | Farm Hand | Iowa |
| 27 | Floyd L Underwood | 22 | Son | Farm Hand | Iowa |
| 28 | John H Underwood THIS PERSON | 20 | Son | None | Iowa |
| 29 | Sarah E Underwood | 17 | Daughter | None | Iowa |
| 30 | Arthur T Underwood | 15 | Son | None | Iowa |
| 31 | Eugene Underwood | 13 | Son | None | Iowa |
| 32 | David G Underwood | 84 | Father | None | Penn |
| 33 | Will B Roller | 36 | Head | Farmer | Iowa |
| 34 | Jennie J Roller | 33 | Wife | None | Iowa |
| 35 | Adeline C Roller | 5 | Daughter | None | Iowa |
| 36 | Henry C Roller | 48 | Head | Farmer | Iowa |
| 37 | Mary E Roller | 49 | Wife | None | Iowa |
| 38 | Alan C Roller | 20 | Son | Laborer | Iowa |
| 39 | Harry G Shepherd | 30 | Head | Farmer | Iowa |
| 40 | Lucy E Shepherd | 29 | Wife | None | Iowa |
| 41 | Henry H Shepherd | 60 | Head | None | Iowa |
| 42 | Lucy E Shepherd | 56 | Wife | Teacher | Iowa |
| 43 | Hester G Shepherd | 29 | Daughter | Teacher | Iowa |
| 44 | Alice A Shepherd | 26 | Daughter | None | Iowa |
| 45 | Clara E Shepherd | 18 | Daughter | None | Iowa |
| 46 | Russell Shepherd | 14 | Son | None | Iowa |
| 47 | Edd C Gross | 51 | Head | Farmer | Iowa |
| 48 | Jennie Gross | 47 | Wife | None | Iowa |
| 49 | Horton James P Gross | 15 | Son | None | Iowa |
| 50 | George E Gross | 33 | Head | Farmer | Iowa |
| 51 | George H Ballew | 47 | Head | Farmer | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)