JH
John Horn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Horn across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Horn |
| Given Name | John, Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Jamaica |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Mass |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Malden City |
| Est. Birth Year | ~1921 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Horn | Son | — | 19 | ~1921 |
| Burnett Horn | Son | — | 11 | ~1929 |
| Ann Horn | Daughter | — | 20 | ~1920 |
| Cecilia Horn | Spouse | — | 48 | ~1892 |
| John Horn | Head | — | 50 | ~1890 |
| Joseph Horn | Son | — | 12 | ~1928 |
| Alice Horn | Daughter | — | 16 | ~1924 |
| Margaret Horn | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 19
Middlesex-County, Massachusetts · implied b. ~1921 — 8 household members
| Surname | Horn |
| Given Name | John, Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Jamaica |
| 1935 Residence (County) | Suffolk |
| Highest Grade | H 3 |
| 1935 Residence | Mass |
| 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 John Horn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Horn
Son · 1940 · age 19 · b. ~1921 · Massachusetts
★ You are viewing this record
Sibling
Burnett Horn
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Horn
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Horn
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Horn
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Horn
Sibling · 1940 · age 12
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
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01609-00429)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John F. Horn | 50 | Head | Mechanic | New York |
| 2 | Cecilia Horn | 48 | Wife | — | Eire |
| 3 | Ann Horn | 20 | Daughter | — | Massachusetts |
| 4 | John, Jr. Horn THIS PERSON | 19 | Son | — | Massachusetts |
| 5 | Alice Horn | 16 | Daughter | — | Massachusetts |
| 6 | Joseph Horn | 12 | Son | — | Massachusetts |
| 7 | Burnett Horn | 11 | Son | — | Massachusetts |
| 8 | Margaret Horn | 6 | Daughter | — | Massachusetts |
| 9 | Ernest Di Napoli | 44 | Head | Gardener | Italy |
| 10 | Mary Di Napoli | 34 | Wife | — | Massachusetts |
| 11 | Carmella Di Napoli | 14 | Daughter | — | Massachusetts |
| 12 | William Di Napoli | 9 | Son | — | Massachusetts |
| 13 | Florence Di Napoli | 8 | Daughter | — | Massachusetts |
| 14 | Barbara Di Napoli | 4 | Daughter | — | Massachusetts |
| 15 | Ernest Jr. Di Napoli | 1 | Son | — | Massachusetts |
| 16 | William Rice | 28 | Head | Salesman | Massachusetts |
| 17 | Ruth Rice | 27 | Wife | Secretary | Massachusetts |
| 18 | Ernest Hayes | 61 | Head | Janitor | Vermont |
| 19 | Joyce Hayes | 46 | Wife | Cleaner | Massachusetts |
| 20 | Leonard Evers | 24 | Stepson | Meat Cutter | Massachusetts |
| 21 | Frank Mccarthy | 47 | Head | Upholsterer | Massachusetts |
| 22 | Della E. Mccarthy | 46 | Wife | — | Massachusetts |
| 23 | Robert A. Mccarthy | 20 | Son | Distributor | Massachusetts |
| 24 | Frank C. Jr. Mccarthy | 18 | Son | Laborer | Massachusetts |
| 25 | Waldo F. Richardson | 49 | Head | Manager | Massachusetts |
| 26 | Etta M. Richardson | 47 | Wife | — | Massachusetts |
| 27 | William F. Richardson | 22 | Son | — | Massachusetts |
| 28 | Leopold Gills | 59 | Head | Laborer | Belgium |
| 29 | Richard Gills | 22 | Son | Laborer | Massachusetts |
| 30 | Alexander Brennan | 32 | Son-in-law | Salesman | Massachusetts |
| 31 | Evelyn Brennan | 32 | Daughter | Stenographer | Massachusetts |
| 32 | Frank Favorat | 40 | Head | Proprietor | Germany |
| 33 | Maria Favorat | 37 | Wife | — | Germany |
| 34 | Frank Favorat | 9 | Son | — | Massachusetts |
| 35 | Donald Favorat | 7 | Son | — | Massachusetts |
| 36 | Doris Favorat | 6 | Daughter | — | Massachusetts |
| 37 | Anita Ducette | 28 | Servant | Servant | Massachusetts |
| 38 | Herbert Francis | 34 | Head | Chauffeur | Massachusetts |
| 39 | Margaret Francis | 31 | Wife | Bean Inspector | Eire |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)