RF
Robert Fitzgerald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Robert Fitzgerald across the 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 9-person household.
Age 21
b. ~1919
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Fitzgerald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1919 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Fitzgerald | Son | — | 21 | ~1919 |
| Kathryn Fitzgerald | Daughter | — | 25 | ~1915 |
| James Fitzgerald | Son | — | 18 | ~1922 |
| Alice Fitzgerald | Spouse | — | 49 | ~1891 |
| Thomas Fitzgerald | Head | — | 50 | ~1890 |
| Margaret Fitzgerald | Daughter | — | 16 | ~1924 |
| Joseph Fitzgerald | Son | — | 19 | ~1921 |
| Patrick Fitzgerald | Son | — | 10 | ~1930 |
| Joan Fitzgerald | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Marion, Indiana
Son, age 12
Marion, Indiana · implied b. ~1918 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 21
Marion-County, Indiana · implied b. ~1919 — 9 household members
| Surname | Fitzgerald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Robert Fitzgerald across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Fitzgerald
Son · 1940 · age 21 · b. ~1919 · Indiana
★ You are viewing this record
Sibling
James Fitzgerald
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Fitzgerald
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Fitzgerald
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Fitzgerald
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Fitzgerald
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Fitzgerald
Sibling · 1940 · age 13
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
1940 US Federal Census — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01130-00954)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grace Clever | 55 | Wife | — | Indiana |
| 42 | Helen Clever | 25 | Daughter | — | Indiana |
| 43 | Louis J. Bernatz | 48 | Head | Stenographer | Iowa |
| 44 | Linda M. Bernatz | 50 | Wife | Sales Manager | Iowa |
| 45 | Marguerite Bernatz | 22 | Daughter | — | Illinois |
| 46 | Katheryn Bernatz | 18 | Daughter | Commercial Artist | Indiana |
| 47 | E. John Bernatz | 14 | Son | — | Indiana |
| 48 | Thomas Bernatz | 12 | Son | — | Indiana |
| 49 | Thomas M. Fitzgerald | 50 | Head | President | Ohio |
| 50 | Alice M. Fitzgerald | 49 | Wife | — | Ohio |
| 51 | Kathryn Fitzgerald | 25 | Daughter | Stenographer | Ohio |
| 52 | Robert Fitzgerald THIS PERSON | 21 | Son | — | Indiana |
| 53 | Joseph Fitzgerald | 19 | Son | — | Indiana |
| 54 | James Fitzgerald | 18 | Son | — | Indiana |
| 55 | Margaret Fitzgerald | 16 | Daughter | — | Indiana |
| 56 | Joan Fitzgerald | 13 | Daughter | — | Indiana |
| 57 | Patrick Fitzgerald | 10 | Son | — | Indiana |
| 58 | Warren H. Maxwell | 42 | Head | Superintendent | Indiana |
| 59 | Patia Maxwell | 42 | Wife | — | Indiana |
| 60 | Patia Ann Maxwell | 15 | Daughter | — | Indiana |
| 61 | Richard H. Maxwell | 13 | Son | — | Indiana |
| 62 | John Warren Maxwell | 11 | Son | — | Indiana |
| 63 | Donald B. Shimer | 56 | Head | President | Indiana |
| 64 | Katherine M. Shimer | 55 | Wife | — | Indiana |
| 65 | Donald B. Jr. Shimer | 27 | Son | Accountant | Indiana |
| 66 | Herbert J. Shimer | 25 | Son | Clerk-Bookkeeper | Indiana |
| 67 | Franklin C. Schimpf | 44 | Head | President | Pennsylvania |
| 68 | Malvania Schimpf | 43 | Wife | — | Pennsylvania |
| 69 | Franklin Jr. Schimpf | 15 | Son | — | Pennsylvania |
| 70 | Jack Schimpf | 11 | Son | — | Pennsylvania |
| 71 | Alan Sparks | 37 | Head | Physician & Surgeon | Indiana |
| 72 | Mary J. Sparks | 28 | Wife | — | Indiana |
| 73 | Robert J. Sparks | 7 | Son | — | Indiana |
| 74 | Christopher Coleman | 64 | Head | Director | Illinois |
| 75 | Juliet B. Coleman | 59 | Wife | — | Indiana |
| 76 | Martha J. Coleman | 25 | Daughter | — | Indiana |
| 77 | Amelia Jose | 73 | Head | Editorial Writer | Indiana |
| 78 | Guy L. Sparks | 72 | Head | — | Illinois |
| 79 | Clara K. Sparks | 70 | Wife | — | Indiana |
| 80 | Extra Line Sparks | None | — | — | — |
Related Census Records
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)