RC
Robert Chambers — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Robert Chambers across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a head (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Chambers |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Machinist |
| Industry | Auto worker |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1906 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Patricia Chambers | Daughter | — | 1 | ~1939 |
| Florence Chambers | Spouse | — | 28 | ~1912 |
| Robert Chambers | Head | — | 34 | ~1906 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 14
Philadelphia, Pennsylvania · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 24
Philadelphia, Pennsylvania · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chambers |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Machinist |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Head, age 34
Philadelphia-County, Pennsylvania · implied b. ~1906 — 3 household members
| Surname | Chambers |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Machinist |
| Industry | Auto worker |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 326 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Robert Chambers across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Chambers (~0.92 confidence) and father Robert Chambers (~0.92 confidence) and mother Abigail Chambers (~0.92 confidence) and mother Barbara Chambers (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Chambers
b. ~1860
Source father
● Household
· direct · ~0.92
Father
Robert Chambers
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Abigail Chambers
b. ~1857
Source mother
● Household
· direct · ~0.92
Mother
Barbara Chambers
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Chambers
Head · 1940 · age 34 · b. ~1906 · Pennsylvania
★ 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03713-00046)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Morris Madeline Erdman | 20 | Daughter | Sales Lady | Pennsylvania |
| 42 | Edna Erdman | 1 | Grand Child | — | Pennsylvania |
| 43 | Robert Chambers THIS PERSON | 34 | Head | Machinist | Pennsylvania |
| 44 | Florence Chambers | 28 | Wife | — | Pennsylvania |
| 45 | Patricia Chambers | 1 | Daughter | — | Pennsylvania |
| 46 | John H Seigfried | 65 | Head | Conductor | Pennsylvania |
| 47 | Agnes Seigfried | 65 | Wife | — | Pennsylvania |
| 48 | John Citronak | 28 | Head | Shipper | New Jersey |
| 49 | Anna Citronak | 28 | Wife | Trimmer | Pennsylvania |
| 50 | John P Citronak | 5 | Son | — | Pennsylvania |
| 51 | Thomas Prior | 18 | Brother in law | — | Pennsylvania |
| 52 | Edmund Ranson | 39 | Head | Laborer | Pennsylvania |
| 53 | Laura Ranson | 49 | Wife | — | Pennsylvania |
| 54 | Lillian Ranson | 12 | Daughter | — | Pennsylvania |
| 55 | Edward Ranson | 10 | Son | — | Pennsylvania |
| 56 | Herbert Henry | 31 | Lodger | Time Keeper | Pennsylvania |
| 57 | Joseph Purdy | 42 | Head | Photographer | Maryland |
| 58 | Edith Purdy | 39 | Wife | — | Maryland |
| 59 | Raymond Ferguson | 50 | Head | Truck Driver | Pennsylvania |
| 60 | Mary A. Ferguson | 73 | Mother | — | Pennsylvania |
| 61 | James Gellagher | 62 | Head | Fireman | Pennsylvania |
| 62 | Margaret Gellagher | 62 | Wife | — | Pennsylvania |
| 63 | James Gellagher | 28 | Son | Shipper | Pennsylvania |
| 64 | Walter Berry | 81 | Head | — | England |
| 65 | Clifford Berry | 39 | Son | Sales Man | Ohio |
| 66 | Olive Berry | 45 | Daughter | Examiner | Ohio |
| 67 | Walter Murick | 39 | Head | Baker | Germany |
| 68 | Lillian Murick | 36 | Wife | — | Germany |
| 69 | Vincent Murick | 36 | Head | Baker | Germany |
| 70 | Virginia Murick | 27 | Wife | — | Pennsylvania |
| 71 | Vincent Jr Murick | 3 | Son | — | Pennsylvania |
| 72 | Laura Moyer | 53 | Head | — | Pennsylvania |
| 73 | Laura Moyer | 23 | Daughter | Stenographer | Pennsylvania |
| 74 | George Moyer | 19 | Son | — | Pennsylvania |
| 75 | John Smith | 14 | Grandson | — | Pennsylvania |
| 76 | Martin Solheim | 66 | Roomer | — | Norway |
| 77 | Catherine Donnley | 62 | Roomer | Cashier | Pennsylvania |
| 78 | Margaret Campo | 19 | Daughter | — | Pennsylvania |
Pedigree Summary
Robert
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)