MW
Mary Welch — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Welch across the 1900, 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1845), then head of a 2-person household.
Age 75
b. ~1845
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Suffolk, Massachusetts |
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1860 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | City Of Boston |
| Est. Birth Year | ~1845 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Welch | Head | — | 75 | ~1845 |
| Thomas Welch | Son | — | 35 | ~1885 |
Census Appearances
1900
Suffolk, Massachusetts
Spouse, age 55
Suffolk, Massachusetts · implied b. ~1845 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | May |
| Birth Year | 1845 |
| Year of Immigration | 1860 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Suffolk, Massachusetts
Spouse, age 64
Suffolk, Massachusetts · implied b. ~1846 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 40 |
| Children Born | 7 |
| Children Living | 1 |
| Year of Immigration | 1860 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Suffolk, Massachusetts
Head, age 75
Suffolk, Massachusetts · implied b. ~1845 — 2 household members
| Surname | Welch |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1860 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| 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 Suffolk, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
Mary Welch
Head · 1920 · age 75 · b. ~1845 · 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 — Suffolk, Massachusetts
Open full size
1920 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu735unit:0972)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Callahan | 5 | daughter | None | Massachusetts |
| 2 | Elizabeth Callahan | 3 | daughter | None | Massachusetts |
| 3 | Theresa Callahan | 1 | daughter | None | Massachusetts |
| 4 | Mary Welch THIS PERSON | 75 | Head | — | Ireland |
| 5 | Thomas J Welch | 35 | Son | — | Massachusetts |
| 6 | Jessie A Provitt | 40 | Head | Laundry Worker | Massachusetts |
| 7 | Charles E Baker | 53 | Head | Salesman | Massachusetts |
| 8 | Frederick R Baker | 52 | Brother | Shipper | Massachusetts |
| 9 | Frank A Doyle | 67 | Head | None | Canada |
| 10 | Nancy E Doyle | 26 | daughter | None | Canada |
| 11 | George H Annis | 79 | Head | None | Massachusetts |
| 12 | Alice M Haskell | 44 | Lodger | Nurse | Massachusetts |
| 13 | Harvey S Galbraith | 33 | Head | Shipping | Massachusetts |
| 14 | Ethel Galbraith | 20 | Wife | None | Massachusetts |
| 15 | Minnie Chamberlain | 49 | Head | Cook | Canada |
| 16 | Annie J Kelley | 70 | Head | None | Massachusetts |
| 17 | William J Kelley | 45 | Son | Piano Finisher | Massachusetts |
| 18 | Joseph F Crehan | 35 | Head | Night Watchman | Massachusetts |
| 19 | Elizabeth G Crehan | 33 | Wife | None | Massachusetts |
| 20 | Anna M Crehan | 14 | daughter | None | Massachusetts |
| 21 | William J Crehan | 13 | Son | None | Massachusetts |
| 22 | Helen Crehan | 9 | daughter | None | Massachusetts |
| 23 | Charles J Richers | 63 | Head | Night Watchman | Massachusetts |
| 24 | Mary E Richers | 61 | Wife | Laundress | Massachusetts |
| 25 | Julia A Raymond | 40 | Step-daughter | Waitress | Massachusetts |
| 26 | Hannah E Killian | 55 | Head | Dressmaker | Massachusetts |
| 27 | Ellen J Killian | 51 | Sister | None | Massachusetts |
| 28 | Catherine Harrington | 70 | Head | None | Ireland |
| 29 | Maria Greene | 55 | Head | Nurse Attendant | Ireland |
| 30 | Otto N Johnson | 32 | Head | Chauffeur | Sweden |
| 31 | Ellen E Johnson | 33 | Wife | None | Sweden |
| 32 | Herbert N Dampstrup | 44 | Head | Metal Worker | Denmark |
| 33 | Joanna M Dampstrup | 42 | Wife | None | Denmark |
| 34 | Elmer G Dampstrup | 8 | Son | None | Massachusetts |
| 35 | Mary A Mcellaney | 40 | Head | None | Ireland |
| 36 | John A Mcellaney | 14 | Son | None | Massachusetts |
| 37 | Elizabeth M Mcellaney | 13 | daughter | None | Massachusetts |
| 38 | Joseph B Mcellaney | 11 | Son | None | Massachusetts |
| 39 | Richard J Howlett | 43 | Head | Sailor | Massachusetts |
| 40 | Annie Howlett | 70 | Mother | None | Canada |
| 41 | Anna W Howan | 29 | Head | Seamstress | Canada |
| 42 | George E Howan | 8 | Son | None | Massachusetts |
| 43 | James W Howan | 7 | Son | None | Massachusetts |
| 44 | Alfred C Howan | 5 | Son | None | Massachusetts |
| 45 | Edward M Anderson | 32 | Head | Carpenter | Canada |
| 46 | Edith Anderson | 29 | Wife | None | Canada |
| 47 | Mary J Anderson | 6 | daughter | None | Massachusetts |
| 48 | Alice S Anderson | 4 | daughter | None | Massachusetts |
| 49 | John | 32 | Head | Insurance Agent | Massachusetts |
| 50 | Alice M | 27 | Wife | None | 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)