JC
James Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bucks-County, Pennsylvania
Our Model Tree links this James Clark across the 1920, 1930 and 1940 US Censuses in Bucks-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Samuel & Jean — first a son (b.~1889), then head of a 9-person household.
Age 51
b. ~1889
Male
Son
Born: Australia
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Bucks-County, Pennsylvania |
| Surname | Clark |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Australia |
| 1935 Residence (City) | Northampton Township |
| 1935 Residence (County) | Bucks |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Real Estate Salesman |
| Industry | Own Business |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 276 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | australia |
| Occupation | Real Estate Salesman |
| Township / Ward | Northampton Township |
| Est. Birth Year | ~1889 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Graham Clark | Daughter | — | 49 | ~1891 |
| Mary Clark | Daughter | — | 56 | ~1884 |
| Samuel Clark | Head | — | 79 | ~1861 |
| Thomas Clark | Other | — | 20 | ~1920 |
| William Clark | Other | — | 21 | ~1919 |
| Margaret Clark | Other | — | 26 | ~1914 |
| Edward Clark | Other | — | 36 | ~1904 |
| James Clark | Son | — | 51 | ~1889 |
| Jean Clark | Spouse | — | 78 | ~1862 |
Census Appearances
Son, age 30
Philadelphia, Pennsylvania · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clarke |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Widowed |
| Birthplace | Australia |
| Year of Immigration | 1892 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Ship fitter |
| Industry | Ship yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Year of Naturalization | 1915 |
| Birthplace (normalized) | australia |
1930
Bucks, Pennsylvania
Son, age 41
Bucks, Pennsylvania · implied b. ~1889 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Widowed |
| Birthplace | Australia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Real Estate |
| Industry | Broker |
| Class of Worker | O |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | australia |
1940
Bucks-County, Pennsylvania
Son, age 51
Bucks-County, Pennsylvania · implied b. ~1889 — 9 household members
| Surname | Clark |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Australia |
| 1935 Residence (City) | Northampton Township |
| 1935 Residence (County) | Bucks |
| Naturalization Status | Naturalized |
| Occupation | Real Estate Salesman |
| Industry | Own Business |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 276 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | australia |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Samuel Clark (~0.92 confidence) and mother Jean Clark (~0.92 confidence) and father Samuel Clarke (~0.92 confidence) and mother Jane Clarke (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Clark
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Jean Clark
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
Samuel Clarke
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Jane Clarke
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Clark
Son · 1940 · age 51 · b. ~1889 · Pennsylvania
★ You are viewing this record
Sibling
Graham Clark
Sibling · 1940 · age 49
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Clark
Sibling · 1940 · age 56
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 — Bucks-County, Pennsylvania
Open full size
1940 US Federal Census — Bucks-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03446-00448)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth E. Worthington | 27 | Daughter | No No No No | Pennsylvania |
| 2 | Stuart M. Worthington | 25 | Son | No No No No | Pennsylvania |
| 3 | Edward Q. Fallow | 42 | Head | Farmer | Pennsylvania |
| 4 | Lucille Fallow | 26 | Wife | Laborer | West Virginia |
| 5 | Jane Fallow | 5 | Daughter | No No No No | Pennsylvania |
| 6 | Charles Q. Hulshorth|Hulshorth | 41 | Head | No No No No | Pennsylvania |
| 7 | Lydia Hulshorth|Hulshorth | 42 | Wife | No No No No | Pennsylvania |
| 8 | Herbert Hulshorth|Hulshorth | 21 | Son | No No No No | Pennsylvania |
| 9 | Walter Hulshorth|Hulshorth | 20 | Son | Farmer | Pennsylvania |
| 10 | Dorothy Hulshorth|Hulshorth | 10 | Daughter | New Worker | Pennsylvania |
| 11 | Charles Hulshorth|Hulshorth | 3 | Son | — | Pennsylvania |
| 12 | Adam Q. Bryan | 69 | Head | Farmer | Pennsylvania |
| 13 | Margaret Bryan | 68 | Wife | No No No No | Pennsylvania |
| 14 | James Wallington | 38 | Hired Man | Farmer | Pennsylvania |
| 15 | Samuel Bryan | 34 | Head | Farmer | Pennsylvania |
| 16 | Dorothy Q. Bryan | 33 | Wife | No No No No | Pennsylvania |
| 17 | Samuel Jr. Bryan | 2 | Son | — | Pennsylvania |
| 18 | Samuel Clark | 79 | Head | No No No No | Scotland |
| 19 | Jean Clark | 78 | Wife | No No No No | Scotland |
| 20 | James Clark THIS PERSON | 51 | Son | Real Estate Salesman | Australia |
| 21 | Mary Clark | 56 | Daughter | House Work | Scotland |
| 22 | Graham Elizabeth Clark | 49 | Daughter | No No No No | Australia |
| 23 | Edward Clark | 36 | Grandson | Farmer | Pennsylvania |
| 24 | Margaret Clark | 26 | Grand Daughter | No No No No | Pennsylvania |
| 25 | Thomas Clark | 20 | Grand Son | Farmer | Pennsylvania |
| 26 | William Clark | 21 | Grand Son | Farmer | Pennsylvania |
| 27 | George C. Q. Wendig | 43 | Head | Sheep Shearer | Pennsylvania |
| 28 | Anna Wendig | 42 | Wife | No No No No | Pennsylvania |
| 29 | George A. Q. Mulvey | 48 | Head | Automobile Stock Clerk | Pennsylvania |
| 30 | Flora Mulvey | 50 | Wife | No No No No | Pennsylvania |
| 31 | Harry Richardson | 6 | Grandson | — | Pennsylvania |
| 32 | Clarence Mckinney | 51 | Head | No No No No | Pennsylvania |
| 33 | Mabel Q. Mckinney | 53 | Wife | No No No No | Pennsylvania |
| 34 | Mary Key | 34 | Housekeeper | Store Keeper | Pennsylvania |
| 35 | Jack Temple | 16 | Lodger | Housekeeper | Pennsylvania |
| 36 | Joseph Barker | 13 | Lodger | No No No No | Pennsylvania |
| 37 | James Q. Jordan | 48 | Head | Teamster | Pennsylvania |
| 38 | Sarah Jordan | 47 | Wife | No No No No | Pennsylvania |
| 39 | Sarah Jordan | 14 | Daughter | No No No No | Pennsylvania |
| 40 | James Jr. Jordan | 11 | Son | — | Pennsylvania |
Related Census Records
Pedigree Summary
James + 2 siblings
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)