RH
Robert Harmon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cumberland, Maine
Our Model Tree links this Robert Harmon across the 1920 and 1930 US Censuses in Cumberland, Maine (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 6-person household.
Age 15
b. ~1915
Male
Son
Born: Maine
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cumberland, Maine |
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | City Of Portland |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Emeline Harmon | Spouse | — | 51 | ~1879 |
| Molly Harmon | Daughter | — | 18 | ~1912 |
| Gilbert Harmon | Son | — | 22 | ~1908 |
| Herbert Harmon | Head | — | 54 | ~1876 |
| Robert Harmon | Son | — | 15 | ~1915 |
| William Harmon | Son | — | 24 | ~1906 |
Census Appearances
1920
Cumberland, Maine
Son, age 5
Cumberland, Maine · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | New York |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Cumberland, Maine
Son, age 15
Cumberland, Maine · implied b. ~1915 — 6 household members
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Cumberland, Maine, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Harmon
Son · 1930 · age 15 · b. ~1915 · Maine
★ You are viewing this record
Sibling
Gilbert Harmon
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Harmon
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Molly Harmon
Sibling · 1930 · age 18
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
1930 US Federal Census — Cumberland, Maine
Open full size
1930 US Federal Census — Cumberland, Maine
Page Contents
49 people indexed on this census page (ia:1930:15thcensus831unit:1021)
| Line | Name | Age | Relation | Birthplace |
|---|---|---|---|---|
| 1 | Joseph R | 40 | Head | Maine |
| 2 | Edith M | 37 | Wife | Maine |
| 4 | Herbert J Harmon | 54 | Head | Maine |
| 5 | Emeline Harmon | 51 | Wife | Maine |
| 6 | William Harmon | 24 | Son | Maine |
| 7 | Gilbert Harmon | 22 | Son | Maine |
| 8 | Molly Harmon | 18 | Daughter | Maine |
| 9 | Robert Harmon THIS PERSON | 15 | Son | Maine |
| 10 | Harmon | None | — | — |
| 11 | Harmon | None | — | — |
| 12 | Harmon | None | — | — |
| 13 | Harmon | None | — | — |
| 14 | Harmon | None | — | — |
| 15 | Harmon | None | — | — |
| 16 | Harmon | None | — | — |
| 17 | Harmon | None | — | — |
| 18 | Harmon | None | — | — |
| 19 | Harmon | None | — | — |
| 20 | Harmon | None | — | — |
| 21 | Harmon | None | — | — |
| 22 | Harmon | None | — | — |
| 23 | Harmon | None | — | — |
| 24 | Harmon | None | — | — |
| 25 | Harmon | None | — | — |
| 26 | Harmon | None | — | — |
| 27 | Harmon | None | — | — |
| 28 | Harmon | None | — | — |
| 29 | Harmon | None | — | — |
| 30 | Harmon | None | — | — |
| 31 | Harmon | None | — | — |
| 32 | Harmon | None | — | — |
| 33 | Harmon | None | — | — |
| 34 | Harmon | None | — | — |
| 35 | Harmon | None | — | — |
| 36 | Harmon | None | — | — |
| 37 | Harmon | None | — | — |
| 38 | Harmon | None | — | — |
| 39 | Tom Ellis | 45 | Head | Canada English |
| 40 | Ellis | 42 | Wife | Canada English |
| 41 | Ellis | 18 | Son | Maine |
| 42 | Ellis | 16 | Son | Maine |
| 43 | Ellis | None | — | — |
| 44 | Ellis | None | — | — |
| 45 | Horan | 45 | Head | Maine |
| 46 | Gertrude Horan | 42 | Wife | Maine |
| 47 | Gertrude Horan | 18 | Daughter | Maine |
| 48 | James Horan | 16 | Son | Maine |
| 49 | Mary Horan | 14 | Daughter | Maine |
| 50 | Avery Fides | 60 | Head | Maine |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)