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Thomas Fitzgerald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this Thomas Fitzgerald across the 1920, 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 4-person household.
Age 64
b. ~1876
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Fitzgerald |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Waterloo City |
| 1935 Residence (County) | Black Hawk |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Men's Clothing |
| Class of Worker | OA |
| Hours Worked | 42 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Proprietor |
| Township / Ward | Waterloo City |
| Est. Birth Year | ~1876 |
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 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Geraldine Miller | Daughter | — | 36 | ~1904 |
| Thomas Fitzgerald | Head | — | 64 | ~1876 |
| Max Miller | Other | — | 37 | ~1903 |
| Mae Fitzgerald | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Black Hawk, …
Head, age 44
Black Hawk, Iowa · implied b. ~1876 — 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 | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Partner |
| Industry | Clothing Store |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | iowa |
1930
Black Hawk, …
Head, age 54
Black Hawk, Iowa · implied b. ~1876 — 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 | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | proprietor |
| Industry | retail clothing store |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Home Value / Rent | O |
| Radio Set | 7500 |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Head, age 64
Black-Hawk-County, Iowa · implied b. ~1876 — 4 household members
| Surname | Fitzgerald |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Waterloo City |
| 1935 Residence (County) | Black Hawk |
| Occupation | Proprietor |
| Industry | Men's Clothing |
| Class of Worker | OA |
| Hours Worked | 42 |
| Income (1939) | 0 |
| Highest Grade | No 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Fitzgerald
Head · 1940 · age 64 · b. ~1876 · 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 — Black-Hawk-County, Iowa
Open full size
1940 US Federal Census — Black-Hawk-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01139-01241)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Myrna Hulst | 39 | Wife | House House | Iowa |
| 2 | Edward Hulst | 6 | Son | — | Iowa |
| 3 | Mc Dr Cornish | 81 | Father | 0 | Iowa |
| 4 | Harris B Meredith | 40 | Head | Manager | Iowa |
| 5 | Iris W Meredith | 38 | Wife | — | Iowa |
| 6 | Jean Meredith | 14 | Daughter | — | Iowa |
| 7 | John F Dougherty | 57 | Head | Foreman | North Dakota |
| 8 | Julia C Dougherty | 54 | Wife | — | North Dakota |
| 9 | Thomas Edward Dougherty | 24 | Son | Steward | Canada |
| 10 | Mary Katherine Capper | 24 | Daughter in law | — | Iowa |
| 11 | Bridget Greer | 86 | Mother in law | — | Illinois |
| 12 | Thomas Fitzgerald THIS PERSON | 64 | Head | Proprietor | Iowa |
| 13 | Mae Q Fitzgerald | 57 | Wife | — | Iowa |
| 14 | Geraldine Miller | 36 | Daughter | — | Iowa |
| 15 | Max W Miller | 37 | Son in law | Secretary | Iowa |
| 16 | Ford H Elder | 55 | Head | Salesman | Nebraska |
| 17 | Florence D Elder | 32 | Daughter | — | Nebraska |
| 18 | George D Bushy | 28 | Head | Owner And Proprietor | Iowa |
| 19 | Veda C Bushy | 26 | Wife | — | Colorado |
| 20 | Betty J Bushy | 3 | Daughter | — | Iowa |
| 21 | Irvin Burles | 33 | Head | Salesman | Kansas |
| 22 | Frances Burles | 26 | Wife | — | Kansas |
| 23 | Frank Bagwell | 59 | Head | Field Man | Indiana |
| 24 | Cora B Bagwell | 56 | Wife | — | Ohio |
| 25 | Harold W Classon | 54 | Head | Postal Clerk | Iowa |
| 26 | Olive Classon | 51 | Wife | — | Iowa |
| 27 | Theodore Classon | 12 | Son | — | Iowa |
| 28 | Sidney Lindley | 49 | Head | Building Commissioner | Iowa |
| 29 | Elsie Lindley | 49 | Wife | — | Iowa |
| 30 | Frances Fenner | 24 | Daughter | — | Iowa |
| 31 | Iva Rumbly | 55 | Sister in law | — | South Carolina |
| 32 | David H Updegraff | 72 | Head | Owner And Proprietor | Pennsylvania |
| 33 | Josephine H Updegraff | 87 | Wife | — | Pennsylvania |
| 34 | Ray D Kinney | 35 | Head | Butter Maker | Iowa |
| 35 | Rosalie Kinney | 32 | Wife | — | Iowa |
| 36 | Donna Mae Kinney | 9 | Daughter | — | Iowa |
| 37 | Marie B Foster | 48 | Head | Owner And Manager | Iowa |
| 38 | Vona J Foster | 40 | Wife | General Office | 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)