JH
John Hubbard — 1940 US Census Record
Model Tree available1940 United States Federal Census · Crawford-County, Pennsylvania
Our Model Tree links this John Hubbard across the 1920, 1930 and 1940 US Censuses in Crawford-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Harry & Christina — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Crawford-County, Pennsylvania |
| Surname | Hubbard |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Crawford |
| Additional Details | |
| Occupation | Pattern Maker |
| Industry | Iron Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 468 |
| Highest Grade | Hs 4 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Pattern Maker |
| Township / Ward | Titusville City |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Hubbard | Daughter | — | 24 | ~1916 |
| Harry Hubbard | Head | — | 52 | ~1888 |
| John Hubbard | Son | — | 21 | ~1919 |
| Pauline Hubbard | Daughter | — | 19 | ~1921 |
| Christine Hubbard | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Crawford, Pennsylvania
Son, age 1
Crawford, Pennsylvania · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hubbard |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Crawford, Pennsylvania
Son, age 11
Crawford, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hubbard |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Crawford-County, Pennsylvania
Son, age 21
Crawford-County, Pennsylvania · implied b. ~1919 — 5 household members
| Surname | Hubbard |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Crawford |
| Occupation | Pattern Maker |
| Industry | Iron Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 468 |
| Highest Grade | Hs 4 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Hubbard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Hubbard (~0.92 confidence) and mother Christina Hubbard (~0.92 confidence) and mother Christine Hubbard (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Hubbard
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Christina Hubbard
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Christine Hubbard
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hubbard
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Pauline Hubbard
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Hubbard
Sibling · 1940 · age 24
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 — Crawford-County, Pennsylvania
Open full size
1940 US Federal Census — Crawford-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03477-00053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Judith Davis | 0 | Daughter | — | Pennsylvania |
| 2 | Elvin N. Davis | 75 | Head | — | New York |
| 3 | Myrtie M. Davis | 58 | Wife | — | Pennsylvania |
| 4 | Mary H. Otto | 70 | Sister-in-law | Nurse | New York |
| 5 | Harold O'Neil | 34 | Head | Gauger | Pennsylvania |
| 6 | Mable O'Neil | 27 | Wife | — | Pennsylvania |
| 7 | Shirley O'Neil | 2 | Daughter | — | Pennsylvania |
| 8 | Lucy Stoke | 65 | Head | — | Pennsylvania |
| 9 | Harley Stoke | 22 | Son | Stock Room Boy | Pennsylvania |
| 10 | Harold Moffett | 30 | Head | 44 | Illinois |
| 11 | Jeannette Moffett | 24 | Wife | 0 | Illinois |
| 12 | Barbara Ann Moffett | 1 | Daughter | — | Illinois |
| 13 | Lawrence E. Kelley | 46 | Head | Accountant | Pennsylvania |
| 14 | Marie M. Kelley | 44 | Wife | — | Pennsylvania |
| 15 | Marie C. Kelley | 16 | Daughter | — | Pennsylvania |
| 16 | Rexford Holcomb | 20 | Head | 33 | Pennsylvania |
| 17 | Mary Holcomb | 22 | Wife | — | Pennsylvania |
| 18 | Jean Anne Holcomb | 2 | Daughter | — | Pennsylvania |
| 19 | John Holcomb | 0 | Son | — | Pennsylvania |
| 20 | Mary Mccluskey | 72 | Head | — | Pennsylvania |
| 21 | Hilda Carlson | 80 | Head | — | Sweden |
| 22 | Henry Peterson | 65 | Head | Boiler Shop | Sweden |
| 23 | Florence Peterson | 68 | Wife | — | Pennsylvania |
| 24 | Myrtle Kerr | 56 | Head | Servant | Pennsylvania |
| 25 | Aldria Kerr | 33 | Daughter | School Teacher | Pennsylvania |
| 26 | Mildred Kerr | 24 | Daughter | — | Pennsylvania |
| 27 | Floyd B. August | 53 | Head | Accountant | Pennsylvania |
| 28 | Laura B. August | 52 | Wife | — | Pennsylvania |
| 29 | F. Leroy August | 23 | Son | Accountant | Pennsylvania |
| 30 | Harold M. August | 19 | Son | — | Pennsylvania |
| 31 | Rose Gella | 41 | Head | Practical Nurse | Pennsylvania |
| 32 | Dorothy Gella | 12 | Daughter | — | Pennsylvania |
| 33 | Isaac Marsh | 58 | Head | Acetylene Burner | Pennsylvania |
| 34 | Rose Beatrice Marsh | 33 | Daughter | — | Pennsylvania |
| 35 | Arthur Marsh | 18 | Grandson | — | Pennsylvania |
| 36 | Harry Hubbard | 52 | Head | Machinist | Pennsylvania |
| 37 | Christine Hubbard | 55 | Wife | — | Pennsylvania |
| 38 | Margaret Hubbard | 24 | Daughter | Record Librarian | Pennsylvania |
| 39 | John Hubbard THIS PERSON | 21 | Son | Pattern Maker | Pennsylvania |
| 40 | Pauline Hubbard | 19 | Daughter | New Worker | Pennsylvania |
Pedigree Summary
John + 2 siblings
Gen 1 · 3 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)