JG
James Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this James Gray across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Gray |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Darby Borough |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Helper |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Helper |
| Township / Ward | Darby Borough |
| Est. Birth Year | ~1914 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| William Gray | Head | — | 52 | ~1888 |
| Emma Lynch | Other | — | 72 | ~1868 |
| James Gray | Son | — | 26 | ~1914 |
| William Gray | Son | — | 17 | ~1923 |
| Lavina Gray | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 5
Philadelphia, Pennsylvania · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 15
Philadelphia, Pennsylvania · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Son, age 26
Delaware-County, Pennsylvania · implied b. ~1914 — 5 household members
| Surname | Gray |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Darby Borough |
| 1935 Residence (County) | Delaware |
| Occupation | Helper |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 James Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Gray (~0.92 confidence) and father John Gray (~0.92 confidence) and mother Sophia Gray (~0.92 confidence) and father William Gray (~0.92 confidence) and mother Lavina Gray (~0.92 confidence) and mother Helen Gray (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Gray
b. ~1877
Source father
● Household
· direct · ~0.92
Father
John Gray
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Sophia Gray
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
William Gray
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Lavina Gray
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Helen Gray
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Gray
Son · 1940 · age 26 · b. ~1914 · Pennsylvania
★ You are viewing this record
Sibling
William Gray
Sibling · 1940 · age 17
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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03490-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William D. Dickey | 52 | Head | Keeper | Georgia |
| 2 | Estelle M. Dickey | 45 | Wife | — | Virginia |
| 3 | Earle Dickey | 18 | Son | — | Pennsylvania |
| 4 | Gwendolyn Dickey | 17 | Daughter | New Worker | Pennsylvania |
| 5 | Eleanor Dickey | 14 | Daughter | — | Pennsylvania |
| 6 | William Jr. Dickey | 12 | Son | — | Pennsylvania |
| 7 | Fred G. Thaete | 63 | Head | — | Pennsylvania |
| 8 | Elizabeth G. Thaete | 61 | Wife | Carpenter | Pennsylvania |
| 9 | Robert Walker | 33 | Head | Trucker | Virginia |
| 10 | Hilda Walker | 33 | Wife | — | Virginia |
| 11 | Margetta Walker | 18 | Daughter | — | Pennsylvania |
| 12 | Susan Walker | 15 | Daughter | — | Pennsylvania |
| 13 | William B. Gray | 52 | Head | Truck Driver | Maryland |
| 14 | Lavina B. Gray | 51 | Wife | — | North Carolina |
| 15 | James Gray THIS PERSON | 26 | Son | Helper | Pennsylvania |
| 16 | William B. Jr. Gray | 17 | Son | — | Pennsylvania |
| 17 | Emma Lynch | 72 | Mother-in-law | — | North Carolina |
| 18 | Samuel Sr. Pruitt | 76 | Head | — | Maryland |
| 19 | Anna Pruitt | 68 | Wife | — | Delaware |
| 20 | Samuel Jr. Pruitt | 35 | Son | Mechanic | Pennsylvania |
| 21 | Allen Pruitt | 28 | Son | Still Mixer | Pennsylvania |
| 22 | Allen Jr. Pruitt | 8 | Grandson | — | Pennsylvania |
| 23 | Charles Bauer | 42 | Lodger | — | Pennsylvania |
| 24 | Eleanor Mcallister | 38 | Lodger | Helper | Maryland |
| 25 | Edith Bauer | 37 | Lodger | — | Pennsylvania |
| 26 | Ruth Bauer | 17 | Lodger | — | Pennsylvania |
| 27 | Evelyn Bauer | 15 | Lodger | — | Pennsylvania |
| 28 | William Townsend | 26 | Lodger | Housework | Maryland |
| 29 | Erdman Townsend | 28 | Lodger | Helper | Maryland |
| 30 | Myrtle Townsend | 22 | Lodger | — | Maryland |
| 31 | William Syms | 36 | Lodger | Handy Man | Pennsylvania |
| 32 | Helen Syms | 35 | Lodger | — | Pennsylvania |
| 33 | William Jr. Syms | 10 | Lodger | — | Pennsylvania |
| 34 | Joseph Fite | 43 | Lodger | Janitor | Pennsylvania |
| 35 | Helen Fite | 41 | Lodger | — | Pennsylvania |
| 36 | Edmund S. Wilson | 45 | Head | Mixer | Maryland |
| 37 | Lillie Wilson | 53 | Wife | — | Maryland |
| 38 | Edmund G. Wilson | 27 | Son | Mixer | Pennsylvania |
| 39 | Gladys Clark | 17 | Lodger | — | Pennsylvania |
Pedigree Summary
James + 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)