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Robert Harmon — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Huntingdon, Pennsylvania
Our Model Tree links this Robert Harmon across the 1920 and 1930 US Censuses in Huntingdon, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1908), then head of a 7-person household.
Age 12
b. ~1908
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Huntingdon, Pennsylvania |
| Surname | Harmon |
| Given Name | Robert R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Lincoln Township |
| Est. Birth Year | ~1908 |
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 |
|---|---|---|---|---|
| Robert Harmon | Son | — | 12 | ~1908 |
| Alvin Harmon | Head | — | 36 | ~1884 |
| Mable Harmon | Daughter | — | 5 | ~1915 |
| Mark Harmon | Daughter | — | 14 | ~1906 |
| George Harmon | Son | — | 1 | ~1919 |
| Winifred Harmon | Daughter | — | 10 | ~1910 |
| Amy Harmon | Spouse | — | 35 | ~1885 |
Census Appearances
1920
Huntingdon, Pennsylvania
Son, age 12
Huntingdon, Pennsylvania · implied b. ~1908 — 7 household members
| Surname | Harmon |
| Given Name | Robert R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Huntingdon, Pennsylvania
Son, age 22
Huntingdon, Pennsylvania · implied b. ~1908 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmony |
| Given Name | Robert R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | laborer |
| Industry | automobile factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 9 |
| Veteran | No |
| 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 Harmon across 2 US Census years (1920 and 1930) in Huntingdon, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Harmon
Son · 1920 · age 12 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Mable Harmon
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Harmon
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Harmon
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mark Harmon
Sibling · 1920 · age 14
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 — Huntingdon, Pennsylvania
Open full size
1920 US Federal Census — Huntingdon, Pennsylvania
Page Contents
47 people indexed on this census page (ia:1920:14thcensusofpopu1564unit:0235)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Esther Harmon | 5 | Daughter | — | West Virginia |
| 52 | Alvin J. Harmon | 36 | Head | Carpenter | Pennsylvania |
| 53 | Amy C. Harmon | 35 | Wife | — | Pennsylvania |
| 54 | Mark C. Harmon | 14 | Daughter | — | Pennsylvania |
| 55 | Robert R. Harmon THIS PERSON | 12 | Son | — | Pennsylvania |
| 56 | Winifred Harmon | 10 | Daughter | — | Pennsylvania |
| 57 | Mable Harmon | 5 | Daughter | — | Pennsylvania |
| 58 | George J. Harmon | 1 | Son | — | Pennsylvania |
| 59 | George H. Hallman | 28 | Head | Laborer | Pennsylvania |
| 60 | Frances E. Hallman | 32 | Wife | — | Pennsylvania |
| 61 | Mary V. Hallman | 5 | Daughter | — | Pennsylvania |
| 62 | Frank Y. Hallman | 4 | Son | — | Pennsylvania |
| 63 | Chalmers H. Hennen | 43 | Head | Merchant | Pennsylvania |
| 64 | Charlotte H. Hennen | 37 | Wife | — | Pennsylvania |
| 65 | Clara J. Hennen | 12 | Daughter | — | Pennsylvania |
| 66 | Samuel E. Reppert | 50 | Head | Carpenter | Pennsylvania |
| 67 | Catherine M. Reppert | 53 | Wife | — | Pennsylvania |
| 68 | John W. Reppert | 19 | Son | Carpenter | Pennsylvania |
| 69 | John C. Harris | 47 | Head | Laborer | Pennsylvania |
| 70 | Cora B. Harris | 27 | Wife | — | Pennsylvania |
| 71 | Margaret B. Harris | 7 | Daughter | — | Pennsylvania |
| 72 | William H. Harris | 5 | Son | — | Pennsylvania |
| 73 | Joseph L. Harris | 3 | Son | — | Pennsylvania |
| 74 | David H. Hallman | 61 | Head | Laborer | Pennsylvania |
| 75 | Margaret E. Hallman | 61 | Wife | — | Pennsylvania |
| 76 | Margaret E. Hallman | 15 | Daughter | — | Pennsylvania |
| 77 | Ella B. Bookhamer | 26 | Daughter | Teacher | Pennsylvania |
| 78 | Frank L. Rumsey | 37 | Head | Car Builder | Pennsylvania |
| 79 | Anna C. Rumsey | 34 | Wife | — | Pennsylvania |
| 80 | William B. Rumsey | 14 | Son | — | Pennsylvania |
| 81 | Catherine E. Rumsey | 11 | Daughter | — | Pennsylvania |
| 82 | Mildred H. Rumsey | 8 | Daughter | — | Pennsylvania |
| 83 | Ella J. Rumsey | 4 | Daughter | — | Pennsylvania |
| 84 | Harry Silknitter | 52 | Head | Farmer | Pennsylvania |
| 85 | Nora Silknitter | 41 | Wife | Housekeeper | Pennsylvania |
| 86 | John B. Smith | 39 | Head | Farmer | Pennsylvania |
| 87 | Susan Smith | 40 | Wife | — | Pennsylvania |
| 88 | Evaline Smith | 16 | Daughter | — | Pennsylvania |
| 89 | Raymond P. Smith | 7 | Son | — | Pennsylvania |
| 90 | Martha M. Smith | 5 | Daughter | — | Pennsylvania |
| 91 | May E. Smith | 2 | Daughter | — | Pennsylvania |
| 92 | Margaret Smith | 77 | Mother | — | Pennsylvania |
| 93 | William B. Gillam | 28 | Head | Laborer | Pennsylvania |
| 94 | Virginia M. Gillam | 21 | Wife | — | Pennsylvania |
| 95 | Harry D. Gillam | 2 | Son | — | Pennsylvania |
| 96 | William R. Gillam | 69 | Father | — | Pennsylvania |
| 97 | Melvin Gillam | 13 | Half Brother | — | 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)