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James Mullen — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Hamilton, Iowa
Our Model Tree links this James Mullen across the 1920 and 1930 US Censuses in Hamilton, Iowa (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 9-person household.
Age 9
b. ~1911
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Hamilton, Iowa |
| Surname | Mullen |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Railroad Township |
| 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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Teresa Mullen | Daughter | — | 4 | ~1916 |
| Frances Mullen | Daughter | — | 10 | ~1910 |
| James Mullen | Son | — | 9 | ~1911 |
| Joseph Mullen | Son | — | 8 | ~1912 |
| Caroline Mullen | Daughter | — | 7 | ~1913 |
| Bridget Mullen | Daughter | — | 3 | ~1917 |
| Marcella Mullen | Daughter | — | 1 | ~1919 |
| Teresa Mullen | Spouse | — | 41 | ~1879 |
| Rose Mullen | Daughter | — | 6 | ~1914 |
Census Appearances
1920
Hamilton, Iowa
Son, age 9
Hamilton, Iowa · implied b. ~1911 — 9 household members
| Surname | Mullen |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Hamilton, Iowa
Son, age 20
Hamilton, Iowa · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullans |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Iowa |
| Occupation | none |
| 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 James Mullen across 2 US Census years (1920 and 1930) in Hamilton, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
James Mullen
Son · 1920 · age 9 · b. ~1911 · Iowa
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Sibling
Teresa Mullen
Sibling · 1920 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mullen
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bridget Mullen
Sibling · 1920 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Mullen
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caroline Mullen
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Mullen
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mullen
Sibling · 1920 · age 8
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 — Hamilton, Iowa
Open full size
1920 US Federal Census — Hamilton, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu491unit:1105)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Teresa Mullen | 41 | Wife | — | Iowa |
| 52 | Frances Mullen | 10 | Daughter | — | Iowa |
| 53 | James Mullen THIS PERSON | 9 | Son | — | Iowa |
| 54 | Joseph Mullen | 8 | Son | — | Iowa |
| 55 | Caroline Mullen | 7 | Daughter | — | Iowa |
| 56 | Rose Mullen | 6 | Daughter | — | Iowa |
| 57 | Teresa Mullen | 4 | Daughter | — | Iowa |
| 58 | Bridget Mullen | 3 | Daughter | — | Iowa |
| 59 | Marcella Mullen | 1 | Daughter | — | Iowa |
| 60 | Almond D. Robertson | 42 | Head | Farmer | Wisconsin |
| 61 | Rosie Robertson | 32 | Wife | — | Iowa |
| 62 | Alice Robertson | 9 | Daughter | — | Iowa |
| 63 | Charles Robertson | 1 | Son | — | Iowa |
| 64 | Fielding Wood | 46 | Head | Farmer | Kentucky |
| 65 | Hattie Wood | 43 | Wife | — | Kentucky |
| 66 | Nellie Wood | 10 | Daughter | — | Iowa |
| 67 | Lyle Wood | 7 | Son | — | Iowa |
| 68 | Marcella Wood | 3 | Daughter | — | Iowa |
| 69 | Galy M. Edmonson | 26 | Head | Farmer | Iowa |
| 70 | Mabel Edmonson | 26 | Wife | — | Iowa |
| 71 | Everett Edmonson | 4 | Son | — | Iowa |
| 72 | Genevieve Edmonson | 1 | Daughter | — | Iowa |
| 73 | Oscar Langerman | 40 | Head | Farmer | Missouri |
| 74 | Lena Langerman | 36 | Wife | — | Norway |
| 75 | Dorothy Langerman | 6 | Daughter | — | Iowa |
| 76 | Harold Langerman | 5 | Son | — | Iowa |
| 77 | Floy Langerman | 3 | Son | — | Iowa |
| 78 | Emil Grandland | 56 | Head | Farmer | Norway |
| 79 | Christina Grandland | 47 | Wife | — | Norway |
| 80 | Christopher Grandland | 23 | Son | Farm Laborer | Iowa |
| 81 | Alfred Grandland | 7 | Son | — | Iowa |
| 82 | Lena Grandland | 33 | Daughter | Servant | Norway |
| 83 | Ed Edvenson | 47 | Head | Farmer | Norway |
| 84 | Anna Edvenson | 45 | Wife | — | Illinois |
| 85 | Roy Edvenson | 22 | Son | Farm Laborer | Iowa |
| 86 | Amelia Edvenson | 18 | Daughter | — | Iowa |
| 87 | George T. Christenson | 30 | Head | Farmer | Iowa |
| 88 | Elma Christenson | 26 | Wife | — | New York |
| 89 | Margie Christenson | 7 | Daughter | — | Iowa |
| 90 | Mildred Christenson | 5 | Daughter | — | Iowa |
| 91 | John Schander | 27 | Servant | Farmer | Denmark |
| 92 | John Bryan | 20 | Head | Farmer | Iowa |
| 93 | Dorothy Bryan | 18 | Wife | — | Indiana |
| 94 | Ladonna Bryan | 3 | Daughter | — | Iowa |
| 95 | Harold Bryan | 1 | Son | — | Iowa |
| 96 | Chris Hanson | 32 | Head | Farmer | Tennessee |
| 97 | Hannah Hanson | 58 | Mother | — | Denmark |
| 98 | Holger Hanson | 28 | Brother | Laborer | Iowa |
| 99 | Walter Hanson | 26 | Brother | Laborer | Tennessee |
| 100 | Hartman Hanson | 24 | Brother | Laborer | Tennessee |
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)