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Robert Graham — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Robert Graham across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Alex & Mary — first a head (b.~1887), then head of a 5-person household.
Age 33
b. ~1887
Male
Head
Born: Pennsylvania
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Graham |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Teacher |
| Industry | School |
| 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 | Teacher |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1887 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Graham | Head | — | 33 | ~1887 |
| Hanna Holly | Other | — | 64 | ~1856 |
| Donald Graham | Son | — | 6 | ~1914 |
| Pierson Graham | Son | — | 4 | ~1916 |
| Jane Graham | Spouse | — | 33 | ~1887 |
Census Appearances
1900
Allegheny, Pennsylvania
Son, age 13
Allegheny, Pennsylvania · implied b. ~1887 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Robt. J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | Jany |
| Birth Year | 1887 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Son, age 22
Allegheny, Pennsylvania · implied b. ~1888 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Graham |
| Given Name | Robert H C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Packer |
| Industry | Laundry |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Head, age 33
Allegheny, Pennsylvania · implied b. ~1887 — 5 household members
| Surname | Graham |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Teacher |
| Industry | School |
| 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 |
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 Graham across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Alex Graham (~0.92 confidence) and mother Mary Graham (~0.92 confidence) and father Robert Graham (~0.92 confidence) and mother Bella Graham (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alex Graham
b. ~1842
Source father
● Household
· direct · ~0.92
Mother
Mary Graham
b. ~1855
Source mother
● Household
· direct · ~0.92
Father
Robert Graham
b. ~1857
Source father
● Household
· direct · ~0.92
Mother
Bella Graham
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Graham
Head · 1920 · age 33 · b. ~1887 · Pennsylvania
★ You are viewing this record
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:1920:14thcensusofpopu1522unit:0654)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary A 6718 | 89 | Mother-in-law | — | Pennsylvania |
| 52 | Matilda 6718 | 80 | Aunt | — | Pennsylvania |
| 53 | Harriet J 6718 | 56 | Step-in-law | — | Pennsylvania |
| 54 | Mary J Lynn | 78 | Head | — | Canada |
| 55 | Robert Lynn | 40 | Son | Carpenter | Canada |
| 56 | Anna Lynn | 38 | Daughter | Saleslady | Canada |
| 57 | Thomas G Wilcox | 55 | Head | Salesman | Pennsylvania |
| 58 | Maud Wilcox | 51 | Wife | — | Pennsylvania |
| 59 | Ester Haynes | 29 | Daughter | — | Pennsylvania |
| 60 | Charles G Haynes | 39 | Son-in-law | Printer | Indiana |
| 61 | Dale J Haynes | 9 | Grand-son | — | Pennsylvania |
| 62 | Charles L Jr Haynes | 4 | Grand-son | — | Pennsylvania |
| 63 | Maud E Haynes | 1 | Grand-daughter | — | Pennsylvania |
| 64 | Dale W Wilcox | 27 | Son | — | Pennsylvania |
| 65 | Chalmers Midgley | 24 | Son-in-law | Machinist | Pennsylvania |
| 66 | Frances B Midgley | 21 | Daughter | Clerk | Pennsylvania |
| 67 | William M Friggley | 41 | Boarder | — | Pennsylvania |
| 68 | Charles Friggley | 14 | Boarder | Machinist | Pennsylvania |
| 69 | William Martin | 67 | Head | Machinist | Ohio |
| 70 | Julia Martin | 65 | Wife | — | Ireland |
| 71 | Margaret Martin | 45 | Daughter | — | Ohio |
| 72 | Nellie M Martin | 37 | Daughter | Milliner | Pennsylvania |
| 73 | Robert Graham THIS PERSON | 33 | Head | Teacher | Pennsylvania |
| 74 | Jane Graham | 33 | Wife | Clerk | Pennsylvania |
| 75 | Donald Graham | 6 | Son | — | Pennsylvania |
| 76 | Pierson G Graham | 4 | Son | — | Pennsylvania |
| 77 | Hanna Holly | 64 | Boarder | — | Ireland |
| 78 | George H Winnard | 43 | Head | Insurance | New Jersey |
| 79 | Ethel Winnard | 33 | Wife | — | New York |
| 80 | Catherine Honeywell | 56 | Head | Masseuse | Pennsylvania |
| 81 | Edwin J Honeywell | 32 | Son | Government | Pennsylvania |
| 82 | Mildred G Honeywell | 27 | Daughter | — | Pennsylvania |
| 83 | Frank Free | 40 | Boarder | Repairer | New York |
| 84 | Harry L Parks | 50 | Head | Clerk | Ohio |
| 85 | Ethel M Parks | 48 | Wife | — | Canada |
| 86 | Harriet Parks | 30 | Daughter | Secretary | Pennsylvania |
| 87 | Rachel F Parks | 29 | Daughter | Hair Dress | Pennsylvania |
| 88 | Harry H Parks | 18 | Son | — | Pennsylvania |
| 89 | Ruth Fred Jr Parks | 45 | Brother | Manager | Canada |
| 90 | Silas S Lydick | 68 | Head | Carpenter | Indiana |
| 91 | Agusta Lydick | 63 | Wife | — | Indiana |
| 92 | Marie Mungall | 25 | Boarder | Dress Maker | Austria |
| 93 | Sebastian E Snedmeier | 38 | Head | Buyer | Virginia |
| 94 | Blanche E Snedmeier | 35 | Wife | — | Ohio |
| 95 | Edwin W Snedmeier | 10 | Son | — | Kentucky |
| 96 | Fred L Haas | 35 | Head | Salesman | Pennsylvania |
| 97 | Gertrude E Haas | 25 | Wife | — | Pennsylvania |
| 98 | Sarah A Haas | 56 | Mother | — | Pennsylvania |
| 99 | Albert G Moffitt | 45 | Head | Passenger Agent | Pennsylvania |
| 100 | Ella M Moffitt | 30 | Wife | — | Ohio |
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 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)