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John Jennings — 1940 US Census Record
Model Tree available1940 United States Federal Census · Saratoga-County, New York
Our Model Tree links this John Jennings across the 1920, 1930 and 1940 US Censuses in Saratoga-County, New York (XGBoost, ~Confirmed), with identified parents Wallace & William — first a son (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Saratoga-County, New York |
| Surname | Jennings |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Rock City Falls |
| 1935 Residence (County) | Saratoga |
| Additional Details | |
| Occupation | Violin Player |
| Industry | Orchestra |
| Class of Worker | PW |
| Hours Worked | 68 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Violin Player |
| Township / Ward | Rock City Falls |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Hazel Jennings | Head | — | 53 | ~1887 |
| Elizabeth Turney | Other | — | 80 | ~1860 |
| John Jennings | Son | — | 31 | ~1909 |
Census Appearances
1920
Saratoga, New …
Son, age 11
Saratoga, New York · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jennings |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Saratoga, New …
Son, age 21
Saratoga, New York · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenning |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Helper |
| Industry | Glove shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Saratoga-County, New …
Son, age 31
Saratoga-County, New York · implied b. ~1909 — 3 household members
| Surname | Jennings |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Rock City Falls |
| 1935 Residence (County) | Saratoga |
| Occupation | Violin Player |
| Industry | Orchestra |
| Class of Worker | PW |
| Hours Worked | 68 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Jennings across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Wallace Jennings (~0.92 confidence) and father William Jenning (~0.92 confidence) and mother Hazel Jennings (~0.92 confidence) and mother Hazel Jennings (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Wallace Jennings
b. ~1873
Source father
● Household
· direct · ~0.92
Father
William Jenning
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Hazel Jennings
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Hazel Jennings
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Jennings
Son · 1940 · age 31 · b. ~1909 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Saratoga-County, New York
Open full size
1940 US Federal Census — Saratoga-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02772-00875)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillian Clunehugh | 75 | Head | Np | New York |
| 42 | Fred Shaver | 31 | Nephew | Expressman | New York |
| 43 | Lillian Shaver | 31 | Niece | Stenographer | New York |
| 44 | Matilda Anderson | 60 | Lodger | Np | New York |
| 45 | Georgiana Test | 59 | Head | Np | New York |
| 46 | Kenneth Test | 37 | Son | Garage Attendant | New York |
| 47 | Harvey Test | 24 | Son | Laborer | New York |
| 48 | Glenn Test | 23 | Son | Laborer | New York |
| 49 | Florence Morris | 30 | Daughter | Machine Operator | New York |
| 50 | Philip Emigh | 30 | Son-in-law | Chef | New York |
| 51 | Irma Emigh | 25 | Daughter | Np | New York |
| 52 | Hazel Jennings | 53 | Head | Np | New York |
| 53 | John J. Jennings THIS PERSON | 31 | Son | Violin Player | New York |
| 54 | Elizabeth Turney | 80 | Mother | Np | New York |
| 55 | William Lord | 59 | Head | Np | New York |
| 56 | Addie Lord | 56 | Wife | Np | New York |
| 57 | Dorothy Lord | 22 | Daughter | Bookkeeper | New York |
| 58 | Ruth Lord | 20 | Daughter | Cashier | New York |
| 59 | William Jr. Lord | 19 | Son | Machine Apprentice | New York |
| 60 | George Lord | 17 | Son | Np | New York |
| 61 | Marion Lord | 14 | Daughter | Np | New York |
| 62 | Helen Lord | 12 | Daughter | Np | New York |
| 63 | William Branson | 82 | Lodger | Np | New York |
| 64 | Edward Morrison | 70 | Head | Np | New York |
| 65 | Harry Cull | 50 | Head | Postmaster | New York |
| 66 | Maude Cull | 45 | Wife | Np | New York |
| 67 | Craig Cull | 21 | Son | Laborer | New York |
| 68 | Harry J. Cull | 17 | Son | Np | New York |
| 69 | Raymond Cull | 16 | Son | Np | New York |
| 70 | Alfred Cull | 13 | Son | Np | New York |
| 71 | Walter Cull | 10 | Son | Np | New York |
| 72 | Robert Grynup | 19 | Step-son | Np | New York |
| 73 | Donald Grynup | 17 | Step-son | Np | New York |
| 74 | Geraldine Grynup | 16 | Step-daughter | Np | New York |
| 75 | Sarah Davis | 85 | Mother-in-law | Np | New York |
| 76 | Susie Paul | 81 | Aunt | Np | New York |
| 77 | Anna Riley | 51 | Head | Switch Board Operator | New York |
| 78 | Edwin C. Mellard | 44 | Head | Owner | Penna |
| 79 | Maude S. Mellard | 39 | Wife | Np | Conn |
| 80 | Marion G. Mellard | 15 | Daughter | Np | Mass |
Pedigree Summary
John
Gen 1 · 4 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)