DA
David Allen — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this David Allen across the 1910, 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 3-person household.
Age 35
b. ~1885
Male
Head
Born: Scotland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Allen |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | Switchman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Scotland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | scotland |
| Occupation | Switchman |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1885 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Anna Allen | Spouse | — | 34 | ~1886 |
| Helen Allen | Daughter | — | 12 | ~1908 |
| David Allen | Head | — | 35 | ~1885 |
Census Appearances
1910
Middlesex, Massachusetts
Head, age 26
Middlesex, Massachusetts · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allan |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Scotland |
| Years Married | 5 |
| Year of Immigration | 1893 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Switchman |
| Industry | Railroad |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1920
Middlesex, Massachusetts
Head, age 35
Middlesex, Massachusetts · implied b. ~1885 — 3 household members
| Surname | Allen |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Switchman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Scotland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | scotland |
1930
Middlesex, Massachusetts
Head, age 47
Middlesex, Massachusetts · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allan |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 21 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Switchman |
| Industry | railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Worcester-County, Massachusetts
Head, age 57
Worcester-County, Massachusetts · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allan |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Fitchburg |
| 1935 Residence (County) | Worcester |
| Naturalization Status | Naturalized |
| Occupation | Machinist |
| Industry | Fitchburg Engin. Corp. |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 2450 |
| Highest Grade | No 9 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 David Allen across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
David Allen
Head · 1920 · age 35 · b. ~1885 · Massachusetts
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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:1920:14thcensusofpopu712unit:0974)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J. Bell | 48 | Head | Machinist | Scotland |
| 2 | Ellen Bell | 49 | Wife | — | Scotland |
| 3 | Janet A. Bell | 20 | Daughter | Book Keeper | Massachusetts |
| 4 | Elizabeth Bell | 18 | Daughter | Operator | Massachusetts |
| 5 | Violet L. Bell | 16 | Daughter | Spinner | Massachusetts |
| 6 | Alice Bell | 14 | Daughter | — | Massachusetts |
| 7 | Lester Bell | 11 | Son | — | Massachusetts |
| 8 | Mayhew Bell | 8 | Son | — | Massachusetts |
| 9 | Thomas H. Moore | 35 | Head | Stationary Engineer | Massachusetts |
| 10 | Maria Moore | 35 | Wife | — | Ireland |
| 11 | Arthur E. Moore | 12 | Son | — | Massachusetts |
| 12 | Harold J. Moore | 10 | Son | — | Massachusetts |
| 13 | Ernest W. Moore | 8 | Son | — | Massachusetts |
| 14 | Donald E. Moore | 4 | Son | — | Massachusetts |
| 15 | Thomas E. J. Lynch | 57 | Head | Carpenter | Canada |
| 16 | Lillian G. Lynch | 54 | Wife | — | Maine |
| 17 | Esther Lynch | 20 | Daughter | Servant | Massachusetts |
| 18 | Dora A. Lynch | 23 | Daughter | — | Massachusetts |
| 19 | Emma G. H. Lynch | 21 | Daughter | — | Massachusetts |
| 20 | Albert E. Lynch | 17 | Son | — | Massachusetts |
| 21 | Esther M. Lynch | 2 | Grand daughter | — | Massachusetts |
| 22 | George W. Lowrey | 61 | Head | Watchman | New Hampshire |
| 23 | Mary Lowrey | 47 | Wife | — | Ireland |
| 24 | Freda M. Blackstock | 27 | Step daughter | — | Ireland |
| 25 | James R. Lowrey | 25 | Step son | Repairer | Ireland |
| 26 | Alfred J. Chapman | 45 | Head | Sheet Metal Worker | England |
| 27 | Mary Chapman | 45 | Wife | — | Scotland |
| 28 | Agnes D. Chapman | 14 | Daughter | — | Massachusetts |
| 29 | William G. Chapman | 11 | Son | — | Massachusetts |
| 30 | Ruth Elizabeth Chapman | 4 | Niece | — | Massachusetts |
| 31 | David Allen THIS PERSON | 35 | Head | Switchman | Scotland |
| 32 | Anna Allen | 34 | Wife | — | Australia |
| 33 | Helen M. Allen | 12 | Daughter | — | Massachusetts |
| 34 | Robert C. Catherwood | 56 | Head | Retail Dealer | Ireland |
| 35 | Effa Catherwood | 49 | Wife | — | Canada |
| 36 | Robert J. Catherwood | 25 | Son | Retail Dealer | Massachusetts |
| 37 | Albert Catherwood | 22 | Son | Retail Dealer | Massachusetts |
| 38 | Gladys A. Catherwood | 19 | Daughter in law | — | Massachusetts |
| 39 | Jennie M. Catherwood | 19 | Daughter | — | Massachusetts |
| 40 | John E. Judd | 21 | Head | Machinist | Vermont |
| 41 | Jeline Judd | 35 | Wife | — | Vermont |
| 42 | Warren W. Judd | 16 | Step son | Laborer | Vermont |
| 43 | Irene M. Judd | 12 | Step daughter | — | Vermont |
| 44 | Merle G. Judd | 9 | Step son | — | Vermont |
| 45 | Gerald E. Judd | 6 | Step son | — | New Hampshire |
| 46 | Doris E. Clough | 57 | Mother in law | Servant | Vermont |
| 47 | Wilhelmina Marion | 21 | Sister in law | — | Vermont |
| 48 | William H. Dooley | 50 | Head | — | Massachusetts |
| 49 | Margaret Dooley | 54 | Wife | — | Scotland |
| 50 | Edward W. Dooley | 22 | Son | Painter | Massachusetts |
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)