RA
Robert Adams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Adams across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Frank & Frank — first a son (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Adams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Bus operator |
| Industry | Railway Co. |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Bus Operator |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1911 |
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 |
|---|---|---|---|---|
| Frank Adams | Head | — | 65 | ~1875 |
| Robert Adams | Son | — | 29 | ~1911 |
| Ella Adams | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 9
Allegheny, Pennsylvania · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 19
Allegheny, Pennsylvania · implied b. ~1911 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Grocery Warehouse |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 29
Allegheny-County, Pennsylvania · implied b. ~1911 — 3 household members
| Surname | Adams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Bus operator |
| Industry | Railway Co. |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 400 |
| Highest Grade | Hs 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 Adams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Adams (~0.92 confidence) and father Frank Adams (~0.92 confidence) and mother Ella Adams (~0.92 confidence) and mother Ella Adams (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Adams
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Frank Adams
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Ella Adams
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Ella Adams
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Adams
Son · 1940 · age 29 · b. ~1911 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03660-00219)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Madeline Snyder | 21 | Daughter | Sales Clerk | Pennsylvania |
| 42 | Adamay Snyder | 19 | Daughter | — | Pennsylvania |
| 43 | Wilson Snyder | 13 | Son | — | Pennsylvania |
| 44 | Henry Snyder | 64 | Husband | Laborer | Pennsylvania |
| 45 | Harry Snyder | 40 | Son | Laborer | Pennsylvania |
| 46 | Harry Jr. Snyder | 16 | Grandson | — | Pennsylvania |
| 47 | Clara Mac Cumber | 56 | Head | — | Pennsylvania |
| 48 | A. Carl Mac Cumber | 28 | Son | Salesman | Pennsylvania |
| 49 | Robert G. Mac Cumber | 25 | Son | Salesman | Pennsylvania |
| 50 | Herbert Coddington | 43 | Head | Painter | Maryland |
| 51 | Alice Coddington | 34 | Wife | — | Scotland |
| 52 | Fern Coddington | 13 | Daughter | — | Ohio |
| 53 | Louisa Gordon | 70 | Head | — | Pennsylvania |
| 54 | Walter Gordon | 39 | Son | Attendant | Pennsylvania |
| 55 | Anna Wernie | 63 | Head | — | Germany |
| 56 | William Basile | 26 | Head | Delivery Man | Pennsylvania |
| 57 | Dorotha Basile | 23 | Wife | — | Virginia |
| 58 | Elizabeth Basile | 5 | Daughter | — | Pennsylvania |
| 59 | Frank Adams | 65 | Head | — | Pennsylvania |
| 60 | Ella Adams | 48 | Wife | — | Pennsylvania |
| 61 | Robert Adams THIS PERSON | 29 | Son | Bus Operator | Pennsylvania |
| 62 | Emil Clair | 57 | Head | Carpenter | Pennsylvania |
| 63 | Emma Clair | 51 | Wife | — | Pennsylvania |
| 64 | Edith Clair | 27 | Daughter | School Teacher | Pennsylvania |
| 65 | Dorothy Clair | 23 | Daughter | New Worker | Pennsylvania |
| 66 | Andrew Taylor | 61 | Head | Sheet Metal Worker | New York |
| 67 | Cordelia Taylor | 54 | Wife | — | Pennsylvania |
| 68 | Raymond Taylor | 21 | Son | Installation Man | Pennsylvania |
| 69 | Tillie Dietle | 58 | Head | — | Pennsylvania |
| 70 | Hugh Grove | 43 | Son-in-law | Laborer | Pennsylvania |
| 71 | Kenneth | 19 | Grandson | New Worker | Pennsylvania |
| 72 | Fred Williams | 56 | Head | Machinist | Ohio |
| 73 | Belle Williams | 57 | Wife | — | Ohio |
| 74 | Paul Williams | 28 | Son | Assistant Manager | Pennsylvania |
| 75 | Clarence Williams | 21 | Son | Laborer | Pennsylvania |
| 76 | Donald Matthews | 29 | Head | Motor Coach Operator | Pennsylvania |
| 77 | Evaline Matthews | 27 | Wife | — | Pennsylvania |
| 78 | Donald Matthews | 6 | Son | — | Pennsylvania |
| 79 | Wanda Matthews | 3 | Daughter | — | Pennsylvania |
| 80 | Minnie Matthews | 60 | Head | — | 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)