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Mary Tracy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Tracy across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1902), then head of a 6-person household.
Age 18
b. ~1902
Female
Daughter
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Tracy |
| Given Name | Mary D |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Newton City |
| Est. Birth Year | ~1902 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Martin Tracy | Son | — | 16 | ~1904 |
| Grace Tracy | Spouse | — | 50 | ~1870 |
| Mary Tracy | Daughter | — | 18 | ~1902 |
| Margaret Tracy | Daughter | — | 20 | ~1900 |
| Edward Tracy | Son | — | 19 | ~1901 |
| Neil Tracy | Head | — | 50 | ~1870 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 18
Middlesex, Massachusetts · implied b. ~1902 — 6 household members
| Surname | Tracy |
| Given Name | Mary D |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 29
Middlesex, Massachusetts · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tracy |
| Given Name | Marion M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Teacher |
| Industry | Public School |
| 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 Mary Tracy across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Tracy
Daughter · 1920 · age 18 · b. ~1902 · Massachusetts
★ You are viewing this record
Sibling
Martin Tracy
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Tracy
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Tracy
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:1920:14thcensusofpopu717unit:0311)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Edward C Greenwood | 54 | Head | Treasurer | Massachusetts |
| 52 | Carrie Greenwood | 47 | Wife | — | Massachusetts |
| 53 | Carleton Greenwood | 21 | Son | — | Massachusetts |
| 54 | Mary Holmes | 65 | Head | — | Vermont |
| 55 | Helen Holmes | 37 | Daughter | — | Vermont |
| 56 | Archibald C Jr Mckillop | 7 | Grandson | — | Arizona |
| 57 | David Mckillop | 3 | Grandson | — | Arizona |
| 58 | Edwin Mckillop | 1 | Grandson | — | Arizona |
| 59 | Frances J Dorr | 67 | Head | — | Bavaria |
| 60 | Amanda Dorr | 61 | Wife | — | Massachusetts |
| 61 | Helen D Dorr | 41 | Daughter | Bookkeeper | Massachusetts |
| 62 | Caroline Dorr | 37 | Daughter | Bookkeeper | Massachusetts |
| 63 | Henry P Dorr | 36 | Son | Meat Cutter | Massachusetts |
| 64 | William A Dorr | 30 | Son | Meat Cutter | Massachusetts |
| 65 | Harriet V Dorr | 26 | Daughter | Corset Maker | Massachusetts |
| 66 | Mary E Dorr | 23 | Niece | Shoe Hand | Bavaria |
| 67 | John W P Kennedy | 45 | Head | Artist | Massachusetts |
| 68 | Harriet L Kennedy | 42 | Wife | — | Massachusetts |
| 69 | Grace Second | 38 | Servant | Housekeeper | New Hampshire |
| 70 | Margaret Welch | 44 | Servant | Laundress | Massachusetts |
| 71 | William H Hayes | 62 | Servant | Assistant Chef | North Carolina |
| 72 | Placide Davis | 36 | Servant | Pantry Girl | North Carolina |
| 73 | H A Harris | 41 | Head | Clerk | England |
| 74 | Mildred Harris | 27 | Wife | — | Massachusetts |
| 75 | Ruth Harris | 8 | Daughter | — | Massachusetts |
| 76 | Marjorie Harris | 7 | Daughter | — | Massachusetts |
| 77 | Susan Harris | 1 | Daughter | — | Massachusetts |
| 78 | Elizabeth Mcconea | 67 | Aunt | — | Canada |
| 79 | Ludwig Gerhard | 53 | Head | Agent | New York |
| 80 | Etta Gerhard | 53 | Wife | — | Maine |
| 81 | Mada Gerhard | 27 | Daughter | Teacher | Massachusetts |
| 82 | Louise Gerhard | 21 | Daughter | — | Massachusetts |
| 83 | Chester L Churchill | 28 | Son-in-law | Architect | Massachusetts |
| 84 | Frederick P Banner | 42 | Head | Solicitor | Massachusetts |
| 85 | Mary Banner | 33 | Wife | — | Massachusetts |
| 86 | Phillip Banner | 5 | Son | — | Massachusetts |
| 87 | Odin C Mackay | 38 | Head | Manager | Missouri |
| 88 | Mary Z Mackay | 32 | Wife | — | Ohio |
| 89 | Mary Z Mackay | 5 | Daughter | — | Ohio |
| 90 | Sarah Robertson | 52 | Mother-in-law | — | Canada |
| 91 | A W Nelson | 39 | Head | Civil Engineer | Massachusetts |
| 92 | Gertrude Nelson | 32 | Wife | — | Kansas |
| 93 | Emily Nelson | 1 | Daughter | — | Massachusetts |
| 94 | Rose Lavanzie | 24 | Servant | Servant | Canada |
| 95 | Neil J Tracy | 50 | Head | Merchant | Massachusetts |
| 96 | Grace W Tracy | 50 | Wife | — | Massachusetts |
| 97 | Margaret M Tracy | 20 | Daughter | — | Massachusetts |
| 98 | Edward W Tracy | 19 | Son | — | Massachusetts |
| 99 | Mary D Tracy THIS PERSON | 18 | Daughter | — | Massachusetts |
| 100 | Martin P Tracy | 16 | Son | — | 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)