MW
Mary Welch — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Welch across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 11-person household.
Age 50
b. ~1880
Female
Spouse
Born: Canada-English
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Welch |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Canada-English |
| Naturalization Status | First papers filed |
| Year of Immigration | 1914 |
| Age at First Marriage | 19 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Canada-English |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | canada-english |
| Township / Ward | Boston City |
| Est. Birth Year | ~1880 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Welch | Daughter | — | 20 | ~1910 |
| Hazel Welch | Daughter | — | 22 | ~1908 |
| Margaret Welch | Daughter | — | 12 | ~1918 |
| Ethel Welch | Daughter | — | 11 | ~1919 |
| Lillian Welch | Daughter | — | 15 | ~1915 |
| Richard Welch | Head | — | 54 | ~1876 |
| Arthur Welch | Son | — | 17 | ~1913 |
| Richard Welch | Son | — | 30 | ~1900 |
| George Welch | Son | — | 9 | ~1921 |
| Harold Welch | Son | — | 29 | ~1901 |
| Mary Welch | Spouse | — | 50 | ~1880 |
Census Appearances
1930
Suffolk, Massachusetts
Spouse, age 50
Suffolk, Massachusetts · implied b. ~1880 — 11 household members
| Surname | Welch |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Canada-English |
| Naturalization Status | First papers filed |
| Year of Immigration | 1914 |
| Age at First Marriage | 19 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Canada-English |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | canada-english |
1940
Essex-County, Massachusetts
Spouse, age 61
Essex-County, Massachusetts · implied b. ~1879 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Margaret A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Canada-English |
| 1935 Residence (City) | Salem City |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same house |
| Birthplace (normalized) | canada-english |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Welch
Spouse · 1930 · age 50 · b. ~1880 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel941:1138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John S Mckenney | 65 | Head | Salesman | Canada-English |
| 52 | Mae Muriel Mckenney | 28 | Daughter | Stenographer | Massachusetts |
| 53 | Clarence M Mckenney | 28 | Daughter | Stenographer | Massachusetts |
| 54 | Sadie Kinnear | 67 | 2nd Cousin | Cook | Canada-English |
| 55 | William L Strout | 58 | Head | Machinist | Massachusetts |
| 56 | Melina C Strout | 57 | Wife | — | Denmark |
| 57 | Franklin W Strout | 25 | Son | Machinist | Massachusetts |
| 58 | Dorothy E Strout | 26 | Daughter | — | Massachusetts |
| 59 | Irene Mason | 18 | Adopted Daughter | Waitress | Vermont |
| 60 | John Baptiste | 71 | Boarder | — | Brazil |
| 61 | Frank Zinna | 50 | Head | Laborer | Italy |
| 62 | Angelina Zinna | 47 | Wife | — | Italy |
| 63 | John Zinna | 23 | Son | Upholsterer | Massachusetts |
| 64 | Dora Zinna | 17 | Daughter | Stitcher | Italy |
| 65 | Rose B Zinna | 15 | Daughter | Floor Girl | Massachusetts |
| 66 | Mary G Zinna | 14 | Daughter | — | Massachusetts |
| 67 | Elizabeth Zinna | 12 | Daughter | — | Massachusetts |
| 68 | Albert Zinna | 10 | Son | — | Massachusetts |
| 69 | Arthur Zinna | 8 | Son | — | Massachusetts |
| 70 | Carmella Zinna | 5 | Daughter | — | Massachusetts |
| 71 | Antonio Antonucci | 43 | In law | Laborer | Italy |
| 72 | Frank Buontempo | 56 | Head | Laborer | Italy |
| 73 | Filomena Buontempo | 57 | Wife | — | Italy |
| 74 | Albert Buontempo | 19 | Son | Helper | Vermont |
| 75 | Edward Buontempo | 15 | Son | — | Massachusetts |
| 76 | Thomas Cody | 33 | Head | Assistant Postmaster | Massachusetts |
| 77 | Isabelle E Cody | 33 | Head | Dressmaker | Massachusetts |
| 78 | Pearl E Cody | 11 | Daughter | — | Massachusetts |
| 79 | William T Cody | 9 | Son | — | Massachusetts |
| 80 | Eugene F Cody | 6 | Son | — | Massachusetts |
| 81 | Richard G Welch | 54 | Head | Carpenter | Massachusetts |
| 82 | Mary M Welch THIS PERSON | 50 | Wife | — | Canada-English |
| 83 | Richard F Welch | 30 | Son | Bus Boy | Massachusetts |
| 84 | Harold L Welch | 29 | Son | Painter | Massachusetts |
| 85 | Hazel L Welch | 22 | Daughter | Manicurist | Massachusetts |
| 86 | Alice E Welch | 20 | Daughter | Cashier | Massachusetts |
| 87 | Arthur G Welch | 17 | Son | Errand Boy | Massachusetts |
| 88 | Lillian C Welch | 15 | Daughter | — | Massachusetts |
| 89 | Margaret Welch | 12 | Daughter | — | Massachusetts |
| 90 | Ethel L Welch | 11 | Daughter | — | Massachusetts |
| 91 | George W Welch | 9 | Son | — | Massachusetts |
| 92 | Margaret W Stone | 63 | Head | Dressmaker | Canada-English |
| 93 | Frederick O Stone | 32 | Son | Musician | Massachusetts |
| 94 | Sarah Stone | 29 | Daughter in law | — | Massachusetts |
| 95 | Thomas F O'Brien | 31 | Head | Chauffeur | Massachusetts |
| 96 | Elizabeth A O'Brien | 30 | Wife | — | Massachusetts |
| 97 | Francis S O'Brien | 8 | Son | — | Massachusetts |
| 98 | Joseph T O'Brien | 4 | Son | — | Massachusetts |
| 99 | Irving J Sullivan | 33 | Lodger | Mate | Canada-English |
| 100 | Frank J Sullivan | 30 | Lodger | Mate | Canada-English |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)