RC
Robert Collins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Robert Collins across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & Merrill — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Collins |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Harrison Twp. |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 28 |
| Income (1939) | 0 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Operator |
| Township / Ward | Harrison Twp |
| Est. Birth Year | ~1913 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Marion Collins | Daughter | — | 16 | ~1924 |
| Merrill Collins | Head | — | 54 | ~1886 |
| Robert Collins | Son | — | 27 | ~1913 |
| Mary Collins | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 7
Allegheny, Pennsylvania · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 17
Allegheny, Pennsylvania · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| 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
Allegheny-County, Pennsylvania
Son, age 27
Allegheny-County, Pennsylvania · implied b. ~1913 — 4 household members
| Surname | Collins |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Harrison Twp. |
| 1935 Residence (County) | Allegheny |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 28 |
| Income (1939) | 0 |
| Highest Grade | C-2 |
| 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 Robert Collins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Alter (~0.92 confidence) and father Merrill Collins (~0.92 confidence) and father Merrill Collins (~0.92 confidence) and mother Mary Collins (~0.92 confidence) and mother Mary Collins (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Alter
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Merrill Collins
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Merrill Collins
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Mary Collins
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Mary Collins
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Collins
Son · 1940 · age 27 · b. ~1913 · Pennsylvania
★ You are viewing this record
Sibling
Marion Collins
Sibling · 1940 · age 16
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03405-00030)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Merrill Collins | 54 | Head | Farmer | Pennsylvania |
| 2 | Mary Collins | 52 | Wife | Farm | Pennsylvania |
| 3 | Robert Collins THIS PERSON | 27 | Son | Operator | Pennsylvania |
| 4 | Marion Collins | 16 | Daughter | — | Pennsylvania |
| 5 | Blair Guilliford | 30 | Head | Tracer | Pennsylvania |
| 6 | Elizabeth Guilliford | 26 | Wife | — | Pennsylvania |
| 7 | Nancy L. Guilliford | 3 | Daughter | — | Pennsylvania |
| 8 | Carl A. Smith | 54 | Head | Automobile Mechanic | Pennsylvania |
| 9 | Adele Smith | 49 | Wife | — | Pennsylvania |
| 10 | Robert C. Mcbeaty | 40 | Head | Research Chemist | Illinois |
| 11 | Mary Agatha Mcbeaty | 36 | Wife | — | West Virginia |
| 12 | Bert Andrew Mcbeaty | 5 | Son | — | Pennsylvania |
| 13 | Roger Baker Mcbeaty | 2 | Son | — | Pennsylvania |
| 14 | Andrew Moore | 60 | Head | Farmer | Pennsylvania |
| 15 | Margaret J. Moore | 50 | Wife | — | Pennsylvania |
| 16 | Evelyn Ruth Moore | 15 | Daughter | — | Pennsylvania |
| 17 | Janet Lucille Moore | 12 | Daughter | — | Pennsylvania |
| 18 | Jacob Tibi | 34 | Head | Labor | Germany |
| 19 | Anna Tibi | 32 | Wife | — | Pennsylvania |
| 20 | Robert James Tibi | 8 | Son | — | Pennsylvania |
| 21 | Betty Jean Tibi | 4 | Daughter | — | Pennsylvania |
| 22 | Andrew Baran | 27 | Lodger | 2Nd Ladle Man | Pennsylvania |
| 23 | Elizabeth Baran | 29 | Lodger | Corner Turner | Pennsylvania |
| 24 | Charles Milton | 43 | Head | Tube Straightener | Pennsylvania |
| 25 | Helen Milton | 38 | Wife | — | Pennsylvania |
| 26 | William C. Milton | 14 | Son | — | Pennsylvania |
| 27 | Leroy F. Milton | 12 | Son | — | Pennsylvania |
| 28 | Shirley May Milton | 7 | Daughter | — | Pennsylvania |
| 29 | John Jr. Bitz | 46 | Head | Loader Steel | Pennsylvania |
| 30 | Mary Maria Bitz | 44 | Wife | — | Pennsylvania |
| 31 | John Sr. Bitz | 76 | Father | — | Germany |
| 32 | Ralph Mcdermott | 23 | Lodger | Dairy Man | Pennsylvania |
| 33 | Ralph E. Ciale | 46 | Head | Farmer | Pennsylvania |
| 34 | Ethel J. Ciale | 46 | Wife | — | Pennsylvania |
| 35 | Hazel L. Ciale | 19 | Daughter | — | Pennsylvania |
| 36 | Floyd L. Ciale | 17 | Son | Farm Labor | Pennsylvania |
| 37 | Virginia Lucille Ciale | 14 | Daughter | — | Pennsylvania |
| 38 | Bobby George Ciale | 12 | Son | — | Pennsylvania |
| 39 | Walter D. Malcolm | 43 | Head | Coal Mine Superintendent | Pennsylvania |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 5 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)