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Charles Harmon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Charles Harmon across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 10-person household.
Age 17
b. ~1913
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Harmon |
| Given Name | Charles A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Shipping Clerk |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Shipping Clerk |
| Township / Ward | Medford City |
| Est. Birth Year | ~1913 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Frances Harmon | Daughter | — | 9 | ~1921 |
| Alice Harmon | Daughter | — | 11 | ~1919 |
| Ray Harmon | Son | — | 3 | ~1927 |
| Donald Harmon | Son | — | 7 | ~1923 |
| Charles Harmon | Son | — | 17 | ~1913 |
| Nellie Harmon | Other | — | 46 | ~1884 |
| Kenneth Harmon | Son | — | 6 | ~1924 |
| Robert Harmon | Son | — | 12 | ~1918 |
| George Harmon | Head | — | 47 | ~1883 |
| George Harmon | Son | — | 20 | ~1910 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 7
Middlesex, Massachusetts · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Charles S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 17
Middlesex, Massachusetts · implied b. ~1913 — 10 household members
| Surname | Harmon |
| Given Name | Charles A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Shipping Clerk |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Charles Harmon across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Harmon
Son · 1930 · age 17 · b. ~1913 · Massachusetts
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Sibling
Frances Harmon
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Harmon
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Harmon
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Harmon
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Harmon
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Harmon
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Harmon
Sibling · 1930 · age 6
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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel924:0895)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen F Dion | 70 | Wife-H | — | Massachusetts |
| 2 | Percy G Cyphens | 42 | Head | Carpenter | Maine |
| 3 | Grace C Cyphens | 39 | Wife-H | — | Rhode Island |
| 4 | Stafford B Cyphens | 17 | Son | — | Massachusetts |
| 5 | Robert B Cyphens | 8 | Son | — | Massachusetts |
| 6 | Dana E Lincoln | 30 | Head | Counter Inspector | Massachusetts |
| 7 | Elsie B Lincoln | 33 | Wife-H | — | Massachusetts |
| 8 | Dana E Jr Lincoln | 0 | Son | — | Massachusetts |
| 9 | Charles Larsen | 44 | Head | Engineer Stationary | Denmark |
| 10 | Karen Larsen | 43 | Wife-H | — | Norway |
| 11 | John H Onfrey | 35 | Head | Finisher | England |
| 12 | Bridget Onfrey | 33 | Wife-H | — | England |
| 13 | George L Harmon | 47 | Head | Supt Department | Massachusetts |
| 14 | Nellie H Harmon | 46 | Wife-H | — | Massachusetts |
| 15 | George E Harmon | 20 | Son | Chauffeur | Massachusetts |
| 16 | Charles A Harmon THIS PERSON | 17 | Son | Shipping Clerk | Massachusetts |
| 17 | Robert H Harmon | 12 | Son | — | Massachusetts |
| 18 | Alice J Harmon | 11 | Daughter | — | Massachusetts |
| 19 | Frances Harmon | 9 | Daughter | — | Massachusetts |
| 20 | Donald Harmon | 7 | Son | — | Massachusetts |
| 21 | Kenneth Harmon | 6 | Son | — | Massachusetts |
| 22 | Ray E Harmon | 3 | Son | — | Massachusetts |
| 23 | Leon J Foster | 40 | Head | Painter | Maine |
| 24 | Anna M Foster | 31 | Wife-H | Domestic | Massachusetts |
| 25 | James Bargill | 76 | Father in law | — | Newfoundland |
| 26 | Bridget M Bargill | 75 | Mother in law | — | Irish Free State |
| 27 | Margaret E Williams | 52 | Head | — | Massachusetts |
| 28 | Edna G Williams | 25 | Daughter | Billing Clerk | Massachusetts |
| 29 | Helen M Williams | 24 | Daughter | Pay Roll Clerk | Massachusetts |
| 30 | Dorothea E Williams | 21 | Daughter | Stenographer | Massachusetts |
| 31 | George R Cargill | 43 | Head | Steam Roller Operator | Massachusetts |
| 32 | Kathy E Cargill | 43 | Wife-H | — | Massachusetts |
| 33 | George R Jr Cargill | 17 | Son | Apprentice Machinist | Massachusetts |
| 34 | Edward N Cargill | 14 | Son | — | Massachusetts |
| 35 | Thomas L Cargill | 9 | Son | — | Massachusetts |
| 36 | Eileen G Cargill | 7 | Daughter | — | Massachusetts |
| 37 | William B Stafford | 42 | Head | Trucking Foreman | Massachusetts |
| 38 | Sadie E Stafford | 38 | Wife-H | — | Massachusetts |
| 39 | Edna E Stafford | 16 | Daughter | — | Massachusetts |
| 40 | William F Stafford | 14 | Son | — | Massachusetts |
| 41 | Grace M Stafford | 9 | Daughter | — | Massachusetts |
| 42 | George E Irch | 43 | Head | Steam Fitter | Canada English |
| 43 | Bertha A Irch | 48 | Wife-H | — | Canada English |
| 44 | George E Jr Irch | 10 | Son | — | Massachusetts |
| 45 | Charles R Goff | 43 | Head | Salesman | Massachusetts |
| 46 | Mary E Goff | 49 | Wife-H | — | Massachusetts |
| 47 | Sarah Goff | 63 | Sister | Watchman | Canada English |
| 48 | Robert Elwin Kedston | 31 | Boarder | Lineman | Canada English |
| 49 | Lawrence W Blake | 27 | Head | Chauffeur | Massachusetts |
| 50 | Doris R Blake | 23 | Wife-H | — | Vermont |
Related Census Records
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)