RM
Robert Mcdonald — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Robert Mcdonald across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 7-person household.
Age 46
b. ~1874
Male
Head
Born: Pennsylvania
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | McDonald |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Laborer |
| Industry | Warehouse |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | City Of Pittsburgh |
| Est. Birth Year | ~1874 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| May Mcdonald | Daughter | — | 13 | ~1907 |
| Robert Mcdonald | Head | — | 46 | ~1874 |
| Rita Johnston | Other | — | 34 | ~1886 |
| Robert Mcdonald | Son | — | 18 | ~1902 |
| John Mcdonald | Son | — | 1 | ~1919 |
| Albert Mcdonald | Son | — | 16 | ~1904 |
| Emma Mcdonald | Spouse | — | 46 | ~1874 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 46
Allegheny, Pennsylvania · implied b. ~1874 — 7 household members
| Surname | McDonald |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Warehouse |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Other, age 57
Allegheny, Pennsylvania · implied b. ~1873 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Robert |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Labor |
| Industry | Office Bldg. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | Head |
| Home Value / Rent | O |
| Radio Set | 7000 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 67
Allegheny-County, Pennsylvania · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No 8 |
| 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 Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mcdonald
Head · 1920 · age 46 · b. ~1874 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1525unit:0724)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ursula Gion | 13 | daughter | None | Pennsylvania |
| 2 | Frank Gion | 11 | son | None | Pennsylvania |
| 3 | Florence Gion | 7 | daughter | None | Pennsylvania |
| 4 | Louis Gion | 5 | son | None | Pennsylvania |
| 5 | John Sting | 65 | Head | None | Pennsylvania |
| 6 | Margaret Sting | 39 | daughter | None | Pennsylvania |
| 7 | Anna Sting | 31 | daughter | Stenographer | Pennsylvania |
| 8 | George Sting | 28 | son | Bookkeeper | Pennsylvania |
| 9 | Mabel Sting | 26 | daughter | None | Pennsylvania |
| 10 | Edwin Sting | 18 | son | Repairman | Pennsylvania |
| 11 | Winne Haines | 26 | Boarder | Merchant | Michigan |
| 12 | David J. Rogue | 34 | Head | Clerk | Pennsylvania |
| 13 | Vella S. Rogue | 35 | wife | None | Pennsylvania |
| 14 | Clarence S. Rogue | 9 | son | None | Pennsylvania |
| 15 | David E. Rogue | 8 | son | None | Pennsylvania |
| 16 | M. James Rogue | 1 | son | None | Pennsylvania |
| 17 | Joseph A. Rogue | 0 | son | None | Pennsylvania |
| 18 | Robert Mcdonald THIS PERSON | 46 | Head | Laborer | Pennsylvania |
| 19 | Emma Mcdonald | 46 | wife | None | Pennsylvania |
| 20 | Robert Mcdonald | 18 | son | Clerk | Pennsylvania |
| 21 | Albert Mcdonald | 16 | son | Errand Boy | Pennsylvania |
| 22 | May Mcdonald | 13 | daughter | None | Pennsylvania |
| 23 | John E. Mcdonald | 1 | son | None | Pennsylvania |
| 24 | Rita Johnston | 34 | sister-in-law | Clerk | Pennsylvania |
| 25 | Marie L. Mayer | 48 | Head | None | Germany |
| 26 | Harry J. Mayer | 23 | son | Clerk | Pennsylvania |
| 27 | Charles Arbuthnot | 46 | Head | Horse Shoer | Pennsylvania |
| 28 | Lora Arbuthnot | 46 | wife | None | Wales |
| 29 | Joseph B. Arbuthnot | 26 | son | Horse Shoer | Pennsylvania |
| 30 | Irene Arbuthnot | 23 | daughter | Saleslady | Pennsylvania |
| 31 | Robert Arbuthnot | 10 | son | None | Pennsylvania |
| 32 | Freda Fehr | 25 | Boarder | Hair Dresser | Ohio |
| 33 | Harry S. Schaller | 42 | Head | Heater | Pennsylvania |
| 34 | Carrie Schaller | 48 | wife | None | Pennsylvania |
| 35 | Alexander Pettig | 31 | Head | Piano Tuner | Pennsylvania |
| 36 | Anna Pettig | 26 | wife | None | Pennsylvania |
| 37 | Joseph Pettig | 4 | son | None | Pennsylvania |
| 38 | Rita Pettig | 3 | daughter | None | Pennsylvania |
| 39 | Marie Pettig | 0 | daughter | None | Pennsylvania |
| 40 | Adolf H. Schroeder | 44 | Head | Optometrist | Germany |
| 41 | Judith C. Schroeder | 40 | wife | None | Pennsylvania |
| 42 | Emma M. Schroeder | 16 | daughter | Student | Pennsylvania |
| 43 | Grace K. Schroeder | 14 | daughter | Student | Pennsylvania |
| 44 | Agnes M. Schroeder | 12 | daughter | None | Pennsylvania |
| 45 | Emil R. Schroeder | 10 | son | None | Pennsylvania |
| 46 | George J. Schroeder | 9 | son | None | Pennsylvania |
| 47 | J. Jeannette Schroeder | 6 | daughter | None | Pennsylvania |
| 48 | Robert E. Schroeder | 4 | son | None | Pennsylvania |
| 49 | John Freis | 48 | Head | Laborer | Germany |
| 50 | Lucy Freis | 40 | wife | None | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)