JF
John Fitzgerald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this John Fitzgerald across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Fitzgerald |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | Sub carrier |
| Industry | Post office |
| Class of Worker | GW |
| Hours Worked | 15 |
| Income (1939) | 275 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Sub Carrier |
| Township / Ward | St Paul |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Geraldine Fitzgerald | Daughter | — | 20 | ~1920 |
| John Fitzgerald | Head | — | 53 | ~1887 |
| Bessie Bowers | Other | — | 3 | ~1937 |
| Estra Lenzey | Other | — | — | |
| Mary Lenzey | Other | — | 2 | ~1938 |
| John Fitzgerald | Son | — | 20 | ~1920 |
| Celestine Fitzgerald | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Ramsey, Minnesota
Son, age
Ramsey, Minnesota · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ramsey, Minnesota
Son, age 10
Ramsey, Minnesota · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fitzgerald |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Son, age 20
Ramsey-County, Minnesota · implied b. ~1920 — 7 household members
| Surname | Fitzgerald |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul |
| 1935 Residence (County) | Ramsey |
| Occupation | Sub carrier |
| Industry | Post office |
| Class of Worker | GW |
| Hours Worked | 15 |
| Income (1939) | 275 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Fitzgerald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Fitzgerald (~0.92 confidence) and father John Fitzgerald (~0.92 confidence) and mother Celestine Fitzgerald (~0.92 confidence) and mother Adeline Fitzgerald (~0.92 confidence) and father John Fitzgerald (~0.92 confidence) and mother Celestine Fitzgerald (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Fitzgerald
b. ~1885
Source father
● Household
· direct · ~0.92
Father
John Fitzgerald
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Celestine Fitzgerald
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Adeline Fitzgerald
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
John Fitzgerald
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Celestine Fitzgerald
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Fitzgerald
Son · 1940 · age 20 · b. ~1920 · Minnesota
★ You are viewing this record
Sibling
Geraldine Fitzgerald
Sibling · 1940 · age 20
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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02003-00536)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clara E. Haug | 36 | Wife | — | Minnesota |
| 2 | Donna L. Haug | 12 | Daughter | — | Minnesota |
| 3 | Lois J. Haug | 10 | Daughter | — | Minnesota |
| 4 | Geraldine J. Haug | 3 | Daughter | — | Minnesota |
| 5 | Esther M. Schultz | 26 | Sister in law | Waitress | Minnesota |
| 6 | Robert E. Hyland | 40 | Head | Mailman | Minnesota |
| 7 | Marie E. Hyland | 31 | Wife | — | Minnesota |
| 8 | Robert J. Hyland | 3 | Son | — | Minnesota |
| 9 | John G. Notgreunemann | 39 | Head | Airport Attendant | Minnesota |
| 10 | Gertrude H. Notgreunemann | 33 | Wife | — | Minnesota |
| 11 | Charlotte M. Notgreunemann | 8 | Daughter | — | Minnesota |
| 12 | Winifred A. Notgreunemann | 7 | Daughter | — | Minnesota |
| 13 | Bernadette Notgreunemann | 4 | Daughter | — | Minnesota |
| 14 | John C. Notgreunemann | 2 | Son | — | Minnesota |
| 15 | Amos D. Johnson | 51 | Head | — | Minnesota |
| 16 | Robert A. Johnson | 26 | Son | Manager | Minnesota |
| 17 | Edward F. Wiedemann | 45 | Head | Salesman | Illinois |
| 18 | Alice C. Wiedemann | 35 | Wife | — | Minnesota |
| 19 | John E. Wiedemann | 8 | Son | — | Minnesota |
| 20 | Jerome M. Wiedemann | 3 | Son | — | Minnesota |
| 21 | Jacob E. Bergland | 32 | Head | Collector | Minnesota |
| 22 | Eleanor L. Bergland | 31 | Wife | — | Minnesota |
| 23 | Beverly A. Bergland | 4 | Daughter | — | Minnesota |
| 24 | Helen M. Bunn | 49 | Head | — | Minnesota |
| 25 | Wallace B. Bailey | 42 | Head | Mechanic | N. Dakota |
| 26 | Helen B. Bailey | 40 | Wife | — | Minnesota |
| 27 | Glenn M. Cook | 46 | Head | Pharmacist | N. Dakota |
| 28 | Beulah Cook | 45 | Wife | — | S. Dakota |
| 29 | George A. Cook | 21 | Son | — | N. Dakota |
| 30 | Glenna Mae Cook | 13 | Daughter | — | N. Dakota |
| 31 | John J. Fitzgerald | 53 | Head | Attorney | Minnesota |
| 32 | Celestine B. Fitzgerald | 54 | Wife | — | Minnesota |
| 33 | Geraldine Fitzgerald | 20 | Daughter | Stenographer | Minnesota |
| 34 | John J. Fitzgerald THIS PERSON | 20 | Son | Sub Carrier | Minnesota |
| 35 | Bessie Bowers | 3 | Boarder | — | Minnesota |
| 36 | Mary B. Lenzey | 2 | Boarder | — | Minnesota |
| 37 | Estra Lenzey | None | Boarder | — | Minnesota |
| 38 | Sherman W. Line | 50 | Head | Salesman | Iowa |
| 39 | Hannah M. Line | 45 | Wife | — | Minnesota |
Pedigree Summary
John + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)