MW
Mary Welch — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Welch across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1865), then head of a 6-person household.
Age 55
b. ~1865
Female
Spouse
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | ireland |
| Township / Ward | Waltham City |
| Est. Birth Year | ~1865 |
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 |
|---|---|---|---|---|
| Mary Welch | Daughter | — | 17 | ~1903 |
| Annie Welch | Daughter | — | 10 | ~1910 |
| William Welch | Head | — | 64 | ~1856 |
| John Welch | Son | — | 21 | ~1899 |
| William Welch | Son | — | 23 | ~1897 |
| Mary Welch | Spouse | — | 55 | ~1865 |
Census Appearances
1900
Middlesex, Massachusetts
Spouse, age 36
Middlesex, Massachusetts · implied b. ~1864 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | July |
| Birth Year | 1864 |
| Year of Immigration | 1881 |
| Naturalization Status | un |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Middlesex, Massachusetts
Spouse, age 45
Middlesex, Massachusetts · implied b. ~1865 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 25 |
| Children Born | 7 |
| Children Living | 6 |
| Year of Immigration | 1881 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Middlesex, Massachusetts
Spouse, age 55
Middlesex, Massachusetts · implied b. ~1865 — 6 household members
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | ireland |
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 Welch across 3 US Census years (1900, 1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Welch
Spouse · 1920 · age 55 · b. ~1865 · Massachusetts
★ You are viewing this record
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:0827)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Lanagan | 49 | Head | House-Keeper | Massachusetts |
| 52 | Gertrude M Lanagan | 20 | Daughter | Book-Keeper | Massachusetts |
| 53 | Lillian W Lanagan | 17 | Daughter | Tester | Massachusetts |
| 54 | Catherine P Lanagan | 13 | Daughter | — | Massachusetts |
| 55 | Helen Lanagan | 11 | Daughter | — | Massachusetts |
| 56 | John Gance | 36 | Head | Foreman | Italy |
| 57 | Mary Gance | 29 | Wife | — | Italy |
| 58 | Mary Gance | 15 | Daughter | Doff-Wire | Massachusetts |
| 59 | Beatrice Gance | 13 | Daughter | — | Massachusetts |
| 60 | Josephine Gance | 12 | Daughter | — | Massachusetts |
| 61 | John Gance | 7 | Son | — | Massachusetts |
| 62 | Amelia Gance | 5 | Daughter | — | Massachusetts |
| 63 | Nicholas Gance | 2 | Son | — | Massachusetts |
| 64 | Anthony Gance | 1 | Son | — | Massachusetts |
| 65 | Anthony Russo | 40 | Head | Laborer | Italy |
| 66 | Lucy Russo | 33 | Wife | — | Italy |
| 67 | Philly Russo | 13 | Daughter | — | Massachusetts |
| 68 | Rose Russo | 11 | Daughter | — | Massachusetts |
| 69 | Josephine Russo | 9 | Daughter | — | Massachusetts |
| 70 | Mary Russo | 5 | Daughter | — | Massachusetts |
| 71 | Frankie Russo | 3 | Son | — | Massachusetts |
| 72 | Concetta Russo | 1 | Daughter | — | Massachusetts |
| 73 | Philip Tummineilli | 29 | Brother-in-law | — | Italy |
| 74 | James W Barry | 46 | Head | Laborer | Massachusetts |
| 75 | Mary E Barry | 47 | Sister | House Work | Massachusetts |
| 76 | John F Barry | 24 | Nephew | Machine Operator | Massachusetts |
| 77 | Arthur F Barry | 22 | Nephew | Laborer | Massachusetts |
| 78 | Albert L Barry | 12 | Nephew | — | Massachusetts |
| 79 | John J Doherty | 60 | Head | Black-Smith | Massachusetts |
| 80 | Sarah Doherty | 58 | Wife | — | Scotland |
| 81 | Lydia Newland | 52 | Head | House Keeper | Pennsylvania |
| 82 | Albert Newland | 22 | Son | Watchmaker | Maine |
| 83 | Mildred Newland | 20 | Daughter | — | Maine |
| 84 | Alice Newland | 15 | Daughter | — | Maine |
| 85 | Doris E Newland | 13 | Son | — | Massachusetts |
| 86 | Robert Patterson | 40 | Head | Laborer | Canada |
| 87 | Mary E Patterson | 29 | Wife | — | Massachusetts |
| 88 | William H Patterson | 11 | Son | — | Massachusetts |
| 89 | Annie L Patterson | 9 | Daughter | — | Massachusetts |
| 90 | Mary L Patterson | 8 | Daughter | — | Massachusetts |
| 91 | Joseph H Patterson | 5 | Son | — | Massachusetts |
| 92 | Sarah J Patterson | 2 | Daughter | — | Massachusetts |
| 93 | Catherine C Patterson | 0 | Daughter | — | Massachusetts |
| 94 | Clarence Tucker | 17 | Boarder | Machine Operator | Massachusetts |
| 95 | William Welch | 64 | Head | Machine Operator | Ireland |
| 96 | Mary Welch THIS PERSON | 55 | Wife | — | Ireland |
| 97 | Mary Welch | 17 | Daughter | Operator | Ireland |
| 98 | Annie Welch | 10 | Daughter | — | Ireland |
| 99 | William Welch | 23 | Son | — | Ireland |
| 100 | John Welch | 21 | Son | Laborer | Ireland |
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)