MS
Mary Sullivan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Sullivan across the 1920, 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 4-person household.
Age 55
b. ~1875
Female
Spouse
Born: England
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Sullivan |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1896 |
| Age at First Marriage | 25 |
| Father's Birthplace | England |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | City Of Boston |
| Est. Birth Year | ~1875 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jeremiah Sullivan | Head | — | 57 | ~1873 |
| Cornelius Sullivan | Son | — | 21 | ~1909 |
| Thomas Sullivan | Son | — | 18 | ~1912 |
| Mary Sullivan | Spouse | — | 55 | ~1875 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 45
Suffolk, Massachusetts · implied b. ~1875 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Marion |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | England |
| Father's Birthplace | England |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Suffolk, Massachusetts
Spouse, age 55
Suffolk, Massachusetts · implied b. ~1875 — 4 household members
| Surname | Sullivan |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1896 |
| Age at First Marriage | 25 |
| Father's Birthplace | England |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Middlesex-County, Massachusetts
Spouse, age 65
Middlesex-County, Massachusetts · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Somerville |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Sullivan
Spouse · 1930 · age 55 · b. ~1875 · 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:massachusettscensus00reel957:0393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter G. Caiger | 33 | Head | Painter | Massachusetts |
| 2 | Ella S. Caiger | 30 | Wife | — | Massachusetts |
| 3 | Evelyn E. Caiger | 8 | Daughter | — | Massachusetts |
| 4 | Dorothy E. Caiger | 6 | Daughter | — | Massachusetts |
| 5 | Gladys M. Caiger | 1 | Daughter | — | Massachusetts |
| 6 | Paul Simon | 65 | Head | Electrical Work | Germany |
| 7 | Emma Simon | 66 | Wife | — | Germany |
| 8 | Alfred Simon | 44 | Son | — | Germany |
| 9 | Harry Dashus | 40 | Head | Presser | Maine |
| 10 | Elsie I. Dashus | 38 | Wife | Hand-Machine | Germany |
| 11 | Helen Dashus | 12 | Daughter | — | Massachusetts |
| 12 | Eleanor Dashus | 7 | Daughter | — | Massachusetts |
| 13 | Rose B. Adams | 51 | Head | — | Maine |
| 14 | Meredith M. Adams | 20 | Son | Clerk | Massachusetts |
| 15 | George Patch | 60 | Boarder | Painter | Massachusetts |
| 16 | John J. Mc Carthy | 34 | Head | Fireman | Massachusetts |
| 17 | Mary H. Mc Carthy | 34 | Wife | — | Irish Free State |
| 18 | John H. Mc Carthy | 6 | Son | — | Massachusetts |
| 19 | Charles E. Mc Carthy | 5 | Son | — | Massachusetts |
| 20 | Eugene Mc Carthy | 3 | Son | — | Massachusetts |
| 21 | Frances J. Mc Carthy | 1 | Son | — | Massachusetts |
| 22 | Dennis D. Sullivan | 63 | Head | Wheelwright | Irish Free State |
| 23 | Margaret Sullivan | 52 | Wife | — | Irish Free State |
| 24 | Agnes M. Sullivan | 22 | Daughter | Stenographer | Massachusetts |
| 25 | Edward J. Sullivan | 18 | Son | Adv. Clerk | Massachusetts |
| 26 | Bernard J. Flaherty | 62 | Head | Lieutenant | Irish Free State |
| 27 | Anastasia Flaherty | 38 | Sister | — | Irish Free State |
| 28 | Cecelia Flaherty | 10 | Niece | — | New York |
| 29 | Theresa M. Flaherty | 9 | Niece | — | Massachusetts |
| 30 | Bernard J. Flaherty | 7 | Nephew | — | Massachusetts |
| 31 | Jeremiah Sullivan | 57 | Head | Customs Inspector | Irish Free State |
| 32 | Mary G. Sullivan THIS PERSON | 55 | Wife | — | England |
| 33 | Cornelius J. Sullivan | 21 | Son | Truck Driver | Massachusetts |
| 34 | Thomas E. Sullivan | 18 | Son | — | Massachusetts |
| 35 | Isaac J. Fossett | 59 | Head | Proprietor | Massachusetts |
| 36 | Julia M. Fossett | 50 | Wife | — | Massachusetts |
| 37 | Ben B. Fossett | 19 | Son | — | Massachusetts |
| 38 | Cynthia A. Fossett | 17 | Daughter | — | Massachusetts |
| 39 | Frederick J. Apted | 73 | Head | Watchman | England |
| 40 | Catherine Apted | 63 | Wife | — | Massachusetts |
| 41 | Simon J. Hogan | 53 | Head | Stationary Engineer | Newfoundland |
| 42 | Mary A. Hogan | 53 | Wife | — | Newfoundland |
| 43 | Mary L. Hogan | 24 | Daughter | Teacher | Massachusetts |
| 44 | Agatha L. Hogan | 23 | Daughter | Secretary | Massachusetts |
| 45 | James F. Hogan | 21 | Son | Truck Driver | Massachusetts |
| 46 | Joseph S. Hogan | 20 | Son | Clerk | Massachusetts |
| 47 | Esther C. Hogan | 15 | Daughter | — | Massachusetts |
| 48 | Thomas J. Mcgrath | 36 | Head | Heating Engineer | Massachusetts |
| 49 | Mildred A. Mcgrath | 31 | Wife | — | Massachusetts |
| 50 | Thomas J. Jr. Mcgrath | 9 | Son | — | Massachusetts |
Related Census Records
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)