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Thomas Fitzgerald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allamakee-County, Iowa
Our Model Tree links this Thomas Fitzgerald across the 1910, 1920, 1930 and 1940 US Censuses in Allamakee-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1861), then head of a 2-person household.
Age 79
b. ~1861
Male
Head
Born: Iowa
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Allamakee-County, Iowa |
| Surname | Fitzgerald |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 79 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | Hanover |
| 1935 Residence (County) | Allamakee |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 20 |
| Income (1939) | 0 |
| Highest Grade | H-8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Hanover |
| Est. Birth Year | ~1861 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Catherine Fitzgerald | Daughter | — | 48 | ~1892 |
| Thomas Fitzgerald | Head | — | 79 | ~1861 |
Census Appearances
1910
Allamakee, Iowa
Head, age 48
Allamakee, Iowa · implied b. ~1862 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Iowa |
| Years Married | 21 |
| Father's Birthplace | Ger |
| Mother's Birthplace | Ger |
| Occupation | Farmer |
| Industry | General Farm |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Allamakee, Iowa
Head, age 58
Allamakee, Iowa · implied b. ~1862 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Allamakee, Iowa
Head, age 68
Allamakee, Iowa · implied b. ~1862 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | Thomas J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 27 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Allamakee-County, Iowa
Head, age 79
Allamakee-County, Iowa · implied b. ~1861 — 2 household members
| Surname | Fitzgerald |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 79 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | Hanover |
| 1935 Residence (County) | Allamakee |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 20 |
| Income (1939) | 0 |
| Highest Grade | H-8 |
| 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 Thomas Fitzgerald across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Fitzgerald
Head · 1940 · age 79 · b. ~1861 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allamakee-County, Iowa
Open full size
1940 US Federal Census — Allamakee-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01136-00803)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Byrnes | 13 | Daughter | — | Iowa |
| 42 | Elizabeth Duffy | 6 | Granddaughter | — | Iowa |
| 43 | Francis W. Glavin | 37 | Head | Farmer | Iowa |
| 44 | Helen Glavin | 34 | Wife | — | Wisconsin |
| 45 | Joseph F. Glavin | 12 | Son | — | Iowa |
| 46 | Dorothy Glavin | 10 | Daughter | — | Iowa |
| 47 | Jean Ann Glavin | 7 | Daughter | — | Iowa |
| 48 | William P. Glavin | 6 | Son | — | Iowa |
| 49 | M. Jane Glavin | 1 | Daughter | — | Iowa |
| 50 | William M. Glavin | 67 | Father | — | Iowa |
| 51 | Mary E. Fitzgerald | 45 | Head | Farmer | Iowa |
| 52 | Frank P. Fitzgerald | 41 | Brother | Farmer | Iowa |
| 53 | Peter Hilgendorf | 48 | Head | Farm Laborer | Illinois |
| 54 | Isabelle Hilgendorf | 37 | Wife | Farm Laborer | Norway |
| 55 | Viola Hilgendorf | 14 | Daughter | — | Iowa |
| 56 | Michel P. Hilgendorf | 12 | Son | — | Iowa |
| 57 | Ronald Hilgendorf | 10 | Son | — | Iowa |
| 58 | Rose Mary Hilgendorf | 7 | Daughter | — | Iowa |
| 59 | Rita Hilgendorf | 4 | Daughter | — | Iowa |
| 60 | John Robert Hilgendorf | 2 | Son | — | Iowa |
| 61 | Leonard J. Maliter | 39 | Head | Farmer | Iowa |
| 62 | Margaret Maliter | 40 | Wife | — | N. Dakota |
| 63 | Leroy J. Maliter | 16 | Son | Farm Laborer | Iowa |
| 64 | Elton Maliter | 14 | Son | Farm Laborer | Iowa |
| 65 | Laverne Maliter | 11 | Daughter | — | Iowa |
| 66 | Vernon Maliter | 10 | Son | — | Iowa |
| 67 | James M. Dewitt | 68 | Head | Farmer | Iowa |
| 68 | Dan L. Van Brocklin | 75 | Head | Farmer | Wisconsin |
| 69 | Walter W. Van Brocklin | 43 | Head | Common Labor | Iowa |
| 70 | Marie Van Brocklin | 34 | Wife | — | Wisconsin |
| 71 | Margaret Van Brocklin | 17 | Daughter | — | Iowa |
| 72 | Dorothy Van Brocklin | 15 | Daughter | — | Minnesota |
| 73 | Donald C. Van Brocklin | 13 | Son | — | California |
| 74 | Delores Van Brocklin | 10 | Daughter | — | Iowa |
| 75 | Helen Van Brocklin | 8 | Daughter | — | Iowa |
| 76 | Inus Van Brocklin | 6 | Daughter | — | Iowa |
| 77 | Darlene Van Brocklin | 3 | Daughter | — | Iowa |
| 78 | John D. Van Brocklin | 1 | Son | — | Iowa |
| 79 | Thomas J. Fitzgerald THIS PERSON | 79 | Head | Farmer | Iowa |
| 80 | Catherine Fitzgerald | 48 | Daughter | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)