RD
Robert Duncan — 1920 US Census Record
Model Tree available1920 United States Federal Census · Washington, Pennsylvania
Our Model Tree links this Robert Duncan across the 1900, 1910 and 1920 US Censuses in Washington, Pennsylvania (XGBoost, ~Confirmed), with identified parents Daniel & Haddasa — first a son (b.~1891), then head of a 3-person household.
Age 29
b. ~1891
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Washington, Pennsylvania |
| Surname | Duncan |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Manager |
| Industry | Lumber mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Manager |
| Township / Ward | Coal Center Borough |
| Est. Birth Year | ~1891 |
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 1920 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Duncan | Son | — | 22 | ~1898 |
| Robert Duncan | Son | — | 29 | ~1891 |
| Hadassa Duncan | Head | — | 54 | ~1866 |
Census Appearances
1900
Washington, Pennsylvania
Son, age 10
Washington, Pennsylvania · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Robert V |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Sep |
| Birth Year | 1890 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Washington, Pennsylvania
Son, age 19
Washington, Pennsylvania · implied b. ~1891 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duncan |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Washington, Pennsylvania
Son, age 29
Washington, Pennsylvania · implied b. ~1891 — 3 household members
| Surname | Duncan |
| Given Name | Robert A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Manager |
| Industry | Lumber mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Duncan across 3 US Census years (1900, 1910 and 1920) in Washington, Pennsylvania, using XGBoost record linkage. Identified parents: father Daniel Duncan (~0.92 confidence) and mother Haddasa Duncan (~0.92 confidence) and mother Hadassa Duncan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Duncan
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Haddasa Duncan
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Hadassa Duncan
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Duncan
Son · 1920 · age 29 · b. ~1891 · Pennsylvania
★ You are viewing this record
Sibling
Mary Duncan
Sibling · 1920 · age 22
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
1920 US Federal Census — Washington, Pennsylvania
Open full size
1920 US Federal Census — Washington, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1660unit:1076)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Florence E. Marple | 12 | Daughter | None | Pennsylvania |
| 52 | Mary E. Marple | 6 | Daughter | None | Pennsylvania |
| 53 | Mary E. Mccartney | 73 | Mother-in-law | None | Pennsylvania |
| 54 | Nancy Craig | 76 | Head | None | Pennsylvania |
| 55 | Mary E. Donaldson | 63 | Head | None | Pennsylvania |
| 56 | Louisa M. Mitchell | 75 | Head | None | Pennsylvania |
| 57 | Relda Adams | 59 | Head | None | Pennsylvania |
| 58 | Robert A. Burns | 56 | Head | Street Commissioner | Pennsylvania |
| 59 | Mary L. Burns | 53 | Wife | None | Pennsylvania |
| 60 | Anna J. Burns | 14 | Daughter | None | Pennsylvania |
| 61 | Peter Atollar | 85 | Father-in-law | None | Pennsylvania |
| 62 | John C. Ralston | 55 | Head | Laborer | Pennsylvania |
| 63 | Effie L. Ralston | 43 | Wife | None | Pennsylvania |
| 64 | Howard L. Ralston | 17 | Son | Apprentice | Pennsylvania |
| 65 | Mary E. Moore | 54 | Head | None | Ohio |
| 66 | Iva M. Woodburn | 49 | Head | None | Pennsylvania |
| 67 | Eddie B. Woodburn | 44 | Brother | None | Pennsylvania |
| 68 | William C. Carson | 31 | Head | Salesman | Pennsylvania |
| 69 | Marguerite B. Carson | 22 | Wife | None | Pennsylvania |
| 70 | Jane L. Carson | 1 | Daughter | None | Pennsylvania |
| 71 | Arthur A. Montgomery | 39 | Head | Driller | Pennsylvania |
| 72 | Nellie M. Montgomery | 34 | Wife | None | New York |
| 73 | John E. Montgomery | 14 | Son | None | West Virginia |
| 74 | Albert B. Montgomery | 11 | Son | None | Pennsylvania |
| 75 | Mary J. Montgomery | 6 | Daughter | None | West Virginia |
| 76 | Nellie M. Montgomery | 4 | Daughter | None | West Virginia |
| 77 | Margaret B. Mccleary | 73 | Head | None | Pennsylvania |
| 78 | Lee H. Belous | 26 | Head | Shipping Clerk | Pennsylvania |
| 79 | Bernice F. Belous | 24 | Wife | None | Ohio |
| 80 | Lee H. Belous | 1 | Son | None | Pennsylvania |
| 81 | Archibald R. Mcclelland | 79 | Head | None | Pennsylvania |
| 82 | Bessie L. Mcclelland | 48 | Wife | None | Pennsylvania |
| 83 | Hunter Emma G. Mcclelland | 12 | Boarder | Bookkeeper | Pennsylvania |
| 84 | Henry M. Kantz | 47 | Head | Inspector | Pennsylvania |
| 85 | Jennie M. Kantz | 49 | Sister | None | Pennsylvania |
| 86 | Hadassa Duncan | 54 | Head | None | Ireland |
| 87 | Robert A. Duncan THIS PERSON | 29 | Son | Manager | Pennsylvania |
| 88 | Mary L. Duncan | 22 | Son | Apprentice | Pennsylvania |
| 89 | Alpheus A. Hamper | 29 | Head | Wood Chopper | Pennsylvania |
| 90 | Alice B. Hamper | 28 | Wife | None | Pennsylvania |
| 91 | Colmer E. Sharp | 33 | Head | Salesman | Pennsylvania |
| 92 | Sarah A. Sharp | 25 | Wife | None | Pennsylvania |
| 93 | Hilda E. Sharp | 5 | Daughter | None | Pennsylvania |
| 94 | Edward J. Sharp | 4 | Son | None | Pennsylvania |
| 95 | Sarah J. Sharp | 2 | Daughter | None | Pennsylvania |
| 96 | Mary L. Sharp | 0 | Daughter | None | Pennsylvania |
| 97 | Harry O. Campsey | 48 | Head | Manager | Pennsylvania |
| 98 | Ada K. Campsey | 47 | Wife | None | Pennsylvania |
| 99 | Myrtle M. Campsey | 20 | Daughter | None | Pennsylvania |
| 100 | Harry O. Campsey | 19 | Son | Farm Labor | Pennsylvania |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)