HS
Harold Smith — 1920 US Census Record
Model Tree available1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Harold Smith across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1899), then head of a 5-person household.
Age 21
b. ~1899
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Smith |
| Given Name | Harold J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Additional Details | |
| Occupation | Timekeeper |
| Industry | Arsenal |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Timekeeper |
| Township / Ward | Waltham City Of |
| Est. Birth Year | ~1899 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Anna Smith | Daughter | — | 19 | ~1901 |
| John Smith | Head | — | 58 | ~1862 |
| Thomas Brayne | Other | — | 25 | ~1895 |
| Harold Smith | Son | — | 21 | ~1899 |
| Elizabeth Smith | Spouse | — | 53 | ~1867 |
Census Appearances
1900
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Harold J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | Mar |
| Birth Year | 1898 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Harold J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1899 — 5 household members
| Surname | Smith |
| Given Name | Harold J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Connecticut |
| Occupation | Timekeeper |
| Industry | Arsenal |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Harold Smith across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father John Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Elizabeth Smith (~0.92 confidence) and mother Elizabeth Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Smith
b. ~1862
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1862
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Smith
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Smith
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Smith
Son · 1920 · age 21 · b. ~1899 · Massachusetts
★ You are viewing this record
Sibling
Anna Smith
Sibling · 1920 · age 19
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 — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu719unit:0937)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jennie V. | 36 | Wife | — | Canada |
| 52 | Novel | 6 | Son | — | Massachusetts |
| 53 | Mary M. | 10 | Daughter | — | Massachusetts |
| 54 | Jeremiah G. Driscoll | 47 | Head | Fireman | Ireland |
| 55 | Bridget Driscoll | 53 | Wife | — | Ireland |
| 56 | Anna Driscoll | 19 | Daughter | Stenographer | Massachusetts |
| 57 | Joseph J. Driscoll | 20 | Son | Fireman | Massachusetts |
| 58 | Wilfred L. Taylor | 34 | Head | Harness Maker | England |
| 59 | Nellie Taylor | 34 | Wife | — | England |
| 60 | Alice Monis | 25 | Head | Watchmaker | Massachusetts |
| 61 | John F. Smith | 58 | Head | Letter Carrier | Massachusetts |
| 62 | Elizabeth K. Smith | 53 | Wife | — | Connecticut |
| 63 | Harold J. Smith THIS PERSON | 21 | Son | Timekeeper | Massachusetts |
| 64 | Anna L. Smith | 19 | Daughter | Typist | Massachusetts |
| 65 | Thomas E. Brayne | 25 | Nephew | Watchmaker | Connecticut |
| 66 | Ira E. Johannot | 62 | Head | Salesman | Massachusetts |
| 67 | Caroline E. Johannot | 58 | Wife | — | Maine |
| 68 | Emma M. Morton | 60 | Sister-in-law | — | Maine |
| 69 | Malvina Barlow | 57 | Head | — | Canada |
| 70 | Ernest A. Barlow | 21 | Son | Machinist | Massachusetts |
| 71 | Mabel Barlow | 39 | Daughter | Watchmaker | Massachusetts |
| 72 | Ella Damon | 69 | Lodger | — | Massachusetts |
| 73 | Thorleif Bonnesen | 34 | Head | Watchmaker | Norway |
| 74 | Borgfield Bonnesen | 31 | Wife | — | Norway |
| 75 | Reider Bonnesen | 11 | Son | — | Massachusetts |
| 76 | Allen Bonnesen | 9 | Son | — | Pennsylvania |
| 77 | Ralph Bonnesen | 7 | Son | — | Illinois |
| 78 | William Bonnesen | 6 | Son | — | Illinois |
| 79 | Warren Bonnesen | 4 | Son | — | Pennsylvania |
| 80 | Roy Bonnesen | 2 | Son | — | Massachusetts |
| 81 | Earle Bonnesen | 1 | Son | — | Massachusetts |
| 82 | Eleanor Bonnesen | 0 | Daughter | — | Massachusetts |
| 83 | Laban Barrows | 59 | Head | — | England |
| 84 | Henrietta Barrows | 58 | Wife | — | Ireland |
| 85 | Henry G. Lamburn | 62 | Head | Mason | England |
| 86 | Elizabeth Lamburn | 62 | Wife | — | Ireland |
| 87 | Mary A. Lamburn | 38 | Daughter | Watch Maker | England |
| 88 | Birdie M. Lamburn | 28 | Daughter | Watch Maker | Massachusetts |
| 89 | Florence E. Lamburn | 26 | Daughter | Watch Maker | Massachusetts |
| 90 | Martha A. Lamburn | 24 | Daughter | Watch Maker | Massachusetts |
| 91 | Alfred D. Le Blanc | 36 | Head | Foreman | Canada |
| 92 | Margaret J. Le Blanc | 35 | Wife | — | Massachusetts |
| 93 | Annie M. Le Blanc | 7 | Daughter | — | Massachusetts |
| 94 | Annie M. Noon | 58 | Mother-in-law | Watch Maker | Massachusetts |
| 95 | Catherine A. Bradley | 59 | Lodger | Watch Maker | Massachusetts |
| 96 | Stephen Mckenna | 46 | Head | Grocery Dealer | Ireland |
| 97 | Annie Mckenna | 47 | Wife | — | Ireland |
| 98 | John J. Mckenna | 21 | Son | Machinist | Massachusetts |
| 99 | Charles J. Mckenna | 18 | Son | — | Massachusetts |
| 100 | Eugene Mckenna | 15 | Son | Helper | Massachusetts |
Pedigree Summary
Harold + 1 sibling
Gen 1 · 5 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)