JD
John Duncan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Henry, Iowa
Our Model Tree links this John Duncan across the 1900, 1910 and 1920 US Censuses in Henry, Iowa (XGBoost, ~Confirmed) — first a head (b.~1856), then head of a 4-person household.
Age 64
b. ~1856
Male
Head
Born: Iowa
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Henry, Iowa |
| Surname | Duncan |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Additional Details | |
| Occupation | Manufacturer |
| Industry | Stock food |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Manufacturer |
| Township / Ward | Mt Pleasant City |
| Est. Birth Year | ~1856 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Fay Duncan | Daughter | — | 29 | ~1891 |
| Ruth Duncan | Daughter | — | 21 | ~1899 |
| John Duncan | Head | — | 64 | ~1856 |
| Lucy Duncan | Spouse | — | 58 | ~1862 |
Census Appearances
1900
Henry, Iowa
Head, age 46
Henry, Iowa · implied b. ~1854 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Iowa |
| Birth Month | July |
| Birth Year | 1854 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Henry, Iowa
Head, age 54
Henry, Iowa · implied b. ~1856 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | J. C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| Years Married | 32 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Manufacturer |
| Industry | Sash & Door Factory |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Henry, Iowa
Head, age 64
Henry, Iowa · implied b. ~1856 — 4 household members
| Surname | Duncan |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Manufacturer |
| Industry | Stock food |
| Class of Worker | Em |
| 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 Duncan across 3 US Census years (1900, 1910 and 1920) in Henry, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
John Duncan
Head · 1920 · age 64 · b. ~1856 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Henry, Iowa
Open full size
1920 US Federal Census — Henry, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu493unit:0740)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rebecca H. Burd | 79 | Head | — | Pennsylvania |
| 2 | James Burd | 46 | Son | Merchant | Pennsylvania |
| 3 | Edna M. Mcadams | 49 | Daughter | — | Pennsylvania |
| 4 | John C. Duncan THIS PERSON | 64 | Head | Manufacturer | Iowa |
| 5 | Lucy Ann Duncan | 58 | Wife | — | Iowa |
| 6 | Fay Duncan | 29 | Daughter | Teacher | Iowa |
| 7 | Ruth Duncan | 21 | Daughter | — | Iowa |
| 8 | F. S. Finley | 52 | Head | Lawyer | Ohio |
| 9 | Katherine Finley | 43 | Wife | — | Iowa |
| 10 | Jean Finley | 18 | Daughter | — | Iowa |
| 11 | F. M. Edwards | 42 | Head | Dental Surgeon | Kansas |
| 12 | Laura Edwards | 38 | Wife | — | Iowa |
| 13 | Frances Edwards | 6 | Daughter | — | Iowa |
| 14 | Judith Boyce | 62 | Mother-in-law | — | Iowa |
| 15 | John L. Scott | 58 | Head | Agent | Ohio |
| 16 | Nellie R. Scott | 57 | Wife | — | Illinois |
| 17 | Pauline Scott | 24 | Daughter | — | Illinois |
| 18 | William Scott | 18 | Son | — | Illinois |
| 19 | Fred D. Williams | 59 | Head | Merchant | Indiana |
| 20 | Emma Williams | 45 | Wife | — | Iowa |
| 21 | Carl Nuess | 23 | Step-son | Asst. Cashier | Iowa |
| 22 | John Brown | 23 | Roomer | — | Iowa |
| 23 | W. L. H | 71 | Head | — | Maryland |
| 24 | Sophie H | 62 | Sister | — | Maryland |
| 25 | Edgar Lines | 56 | Head | Merchant | Iowa |
| 26 | Fannette Lines | 45 | Wife | — | Illinois |
| 27 | Marshall Lines | 19 | Son | — | Iowa |
| 28 | George Lines | 18 | Son | — | Iowa |
| 29 | E. K. Hall | 79 | Head | — | Pennsylvania |
| 30 | Katherine Hall | 58 | Wife | — | Illinois |
| 31 | Suzanne Hall | 16 | Daughter | — | Iowa |
| 32 | Frank Guss | 48 | Head | Carpenter | Missouri |
| 33 | Mary Guss | 52 | Sister | — | Pennsylvania |
| 34 | Christina Church | 71 | Head | — | Iowa |
| 35 | Ralph P. Westfall | 32 | Head | Salesman | Illinois |
| 36 | Elizabeth Westfall | 32 | Wife | — | Iowa |
| 37 | Mary Westfall | 8 | Daughter | — | Iowa |
| 38 | Ralph William Westfall | 3 | Son | — | Iowa |
| 39 | Nettie Risser | 56 | Head | — | Iowa |
| 40 | Emma Risser | 67 | Sister | — | Ohio |
| 41 | James S. Logsdon | 69 | Head | — | Ohio |
| 42 | Harriet X. Logsdon | 64 | Wife | — | Iowa |
| 43 | Samuel W. Pyle | 76 | Head | — | Ohio |
| 44 | H. St. John Pyle | 52 | Son | Merchant | Iowa |
| 45 | R. C. Pyle | 85 | Sister | — | Ohio |
| 46 | Ralph K. Crane | 40 | Head | Merchant | Iowa |
| 47 | Grace Crane | 41 | Wife | — | Iowa |
| 48 | Mary Virginia Crane | 12 | Daughter | — | Iowa |
| 49 | Ruth Crane | 8 | Daughter | — | Iowa |
| 50 | Royal W. Randolph | 28 | Head | Manager | 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)